Substituted pyrazoloazepin-4-ones and their use as phosphodiesterase inhibitors

1. A compound of general formula (I)

wherein

R 1 and R 4 are independently selected from the group consisting of hydrogen and (C 1 -C 4 )alkyl;

R 2 and R 3 are independently selected from the group consisting of hydrogen and (C 1 -C 4 )alkyl; or R 2 and R 3 together with the carbon atom to which they are attached form a cyclopropyl, cyclobutyl, cyclopentyl, oxetanyl, tetrahydrofuranyl, or tetrahydropyranyl ring;

n=0, 1 or 2; and when n is 0, R 4 does not exist;

Q is selected from the group consisting of —O—C(O)—R 5 and —O—C(O)—(C 1 -C 6 )alkyl-R 5 ;

R 5 is selected from the group consisting of heteroaryl and heterocycloalkyl, wherein said heteroaryl and heterocycloalkyl are optionally substituted with one or more substituents independently selected from R 6 ;

R 6 consists of halogen, cyano, hydroxyl, (C 1 -C 4 )alkyl, halo(C 1 -C 4 )alkyl, (C 1 -C 4 )-alkyloxy, —S(O) 2 R x , —S(O) 2 NR a R b , —OR x , —C(O)NR a R b , —C(O)OR a , —C(O)R a , cycloalkyl, aryl and heteroaryl;

R x is (C 1 -C 4 )alkyl;

R a and R b are independently selected from the group consisting of hydrogen, (C 1 -C 4 )alkyl, phenyl-(C 1 -C 4 )alkyl, or

R a and R b together with the nitrogen to which they are attached form a 4-6 membered heterocycloalkyl, wherein said heterocycloalkyl is optionally substituted with one or more (C 1 -C 4 )alkyl;

or a pharmaceutically acceptable salt, hydrate or solvate thereof.

2. A compound according to claim 1 wherein each of R 1 , R 2 , and R 3 is hydrogen, n is 0, Q is selected from the group consisting of —O—C(O)—R 5 and —O—C(O)—(C 1 -C 6 )alkyl-R 5 ;

wherein R 5 is selected from the group consisting of a (5-6) membered heteroaryl, and a (4-6) membered heterocycloalkyl, and

wherein said heteroaryl and heterocycloalkyl are optionally substituted with one or more substituents independently selected from (C 1 -C 4 )alkyl, (C 1 -C 4 )-alkyloxy, —C(O)R a , (C 3 -C 6 )cycloalkyl; wherein R a is (C 1 -C 4 )alkyl.

3. A compound according to claim 1 wherein each of R 1 , R 2 , R 3 , and R 4 is hydrogen, n is 1, Q is —O—C(O)—R 5 ;

wherein R 5 is selected from the group consisting of a (5-6) membered heteroaryl, a (9-10) membered heteroaryl and a (4-6) membered heterocycloalkyl,

wherein said heteroaryl and heterocycloalkyl are optionally substituted with one or more substituents independently selected from R 6 ; and

wherein R 6 consists of hydroxyl, (C 1 -C 4 )alkyl, (C 1 -C 4 )alkyloxy, —OR x , —C(O)NR a R b , —C(O)OR a , —C(O)R a , and (C 3 -C 6 )cycloalkyl, and R x , R a , R b are all (C 1 -C 4 )alkyl.

4. A compound according to claim 1 wherein R 1 and R 4 are both hydrogen, one of R 2 and R 3 is hydrogen and the other one of R 2 and R 3 is (C 1 -C 4 )alkyl; n is 1, Q is —O—C(O)—R 5 ; wherein R 5 is a (4-6) membered heterocycloalkyl.

5. A compound according to claim 1 wherein R 1 and R 4 are both hydrogen, R 2 and R 3 are both (C 1 -C 4 )alkyl; n is 1, Q is —O—C(O)—R 5 ; wherein R 5 is a (4-6) membered heterocycloalkyl.

6. A compound according to claim 1 wherein each of R 1 , R 2 , R 3 , R 4 is hydrogen, n is 2, Q is —O—C(O)—R 5 ;

wherein R 5 is selected from the group consisting of a (5-6) membered heteroaryl and a (4-6) membered heterocycloalkyl, and

wherein said heteroaryl is optionally substituted with one or more of (C 1 -C 4 )alkyl.

7. A compound according to claim 1 selected from the group consisting of

(i) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl isoxazole-5-carboxylate;

(ii) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl oxazole-4-carboxylate;

(iii) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 1-methylpyrazole-4-carboxylate;

(iv) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 5-methylisoxazole-3-carboxylate;

(v) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 2-methyloxazole-4-carboxylate;

(vi) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 2-methyloxazole-5-carboxylate;

(vii) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl thiazole-4-carboxylate;

(viii) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl tetrahydropyran-4-carboxylate;

(ix) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 2-(1-methylpyrrol-2-yl)acetate;

(x) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 1,5-dimethylpyrazole-3-carboxylate;

(xi) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 2-(5-methylisoxazol-3-yl)acetate;

(xii) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 2-(3-methylisoxazol-5-yl)acetate;

(xiii) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 3-methylisothiazole-5-carboxylate;

(xiv) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 4-methylthiazole-2-carboxylate;

(xv) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 2-(2-methylthiazol-4-yl)acetate;

(xvi) 2-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)ethyl 1-acetylpiperidine-4-carboxylate;

(xvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1H-imidazole-4-carboxylate;

(xviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1H-pyrazole-3-carboxylate;

(xix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1H-imidazole-2-carboxylate;

(xx) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1H-pyrazole-4-carboxylate;

(xxi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl isoxazole-3-carboxylate;

(xxii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl isoxazole-5-carboxylate;

(xxiii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl oxazole-4-carboxylate;

(xxiv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl oxazole-5-carboxylate;

(xxv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1H-triazole-4-carboxylate;

(xxvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1H-1,2,4-triazole-3-carboxylate;

(xxvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1,2,5-oxadiazole-3-carboxylate;

(xxviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl tetrahydrofuran-3-carboxylate;

(xxix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl pyridazine-3-carboxylate;

(xxx) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl pyridazine-4-carboxylate;

(xxxi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl pyrimidine-2-carboxylate;

(xxxii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-methylpyrazole-3-carboxylate;

(xxxiii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methyl-1H-pyrazole-3-carboxylate;

(xxxiv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methyl-1H-pyrazole-5-carboxylate;

(xxxv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methylpyrazole-3-carboxylate;

(xxxvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methyl-1H-imidazole-4-carboxylate;

(xxxvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methyl-1H-imidazole-5-carboxylate;

(xxxviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-methylpyrazole-4-carboxylate;

(xxxix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-methylimidazole-4-carboxylate;

(xl) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-methylimidazole-2-carboxylate;

(xli) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylimidazole-4-carboxylate;

(xlii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methylisoxazole-5-carboxylate;

(xliii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylisoxazole-5-carboxylate;

(xliv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methylisoxazole-3-carboxylate;

(xlv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylisoxazole-4-carboxylate;

(xlvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methyloxazole-4-carboxylate;

(xlvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methyloxazole-5-carboxylate;

(xlviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methyloxazole-5-carboxylate;

(xlix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methyltriazole-4-carboxylate;

(l) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methyl-4H-1,2,4-triazole-3-carboxylate;

(li) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methyl-1,2,5-oxadiazole-3-carboxylate;

(lii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-hydroxyisoxazole-5-carboxylate;

(liii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl isothiazole-3-carboxylate;

(liv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl isothiazole-5-carboxylate;

(lv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl isothiazole-4-carboxylate;

(lvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl thiazole-5-carboxylate;

(lvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl thiadiazole-4-carboxylate;

(lviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl tetrahydropyran-3-carboxylate;

(lix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl tetrahydropyran-4-carboxylate;

(lx) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl tetrahydrothiophene-3-carboxylate;

(lxi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methylpyridine-2-carboxylate;

(lxii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylpyridine-2-carboxylate;

(lxiii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methylpyridine-2-carboxylate;

(lxiv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 6-methylpyridine-2-carboxylate;

(lxv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methylpyridine-3-carboxylate;

(lxvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methylpyrimidine-2-carboxylate;

(lxvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylpyridazine-4-carboxylate;

(lxviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methylpyrimidine-4-carboxylate;

(lxix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methylpyrimidine-2-carboxylate;

(lxx) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methylpyrimidine-5-carboxylate;

(lxxi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2,5-dimethylpyrazole-3-carboxylate;

(lxxii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1,5-dimethylpyrazole-3-carboxylate;

(lxxiii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2,3-dimethylimidazole-4-carboxylate;

(lxxiv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4,5-dimethylisoxazole-3-carboxylate;

(lxxv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3,5-dimethylisoxazole-4-carboxylate;

(lxxvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2,5-dimethyloxazole-4-carboxylate;

(lxxvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-acetylazetidine-3-carboxylate;

(lxxviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylisothiazole-5-carboxylate;

(lxxix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methylisothiazole-4-carboxylate;

(lxxx) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 5-methylthiazole-4-carboxylate;

(lxxxi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methylthiazole-5-carboxylate;

(lxxxii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methylthiazole-5-carboxylate;

(lxxxiii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4-methylthiadiazole-5-carboxylate;

(lxxxiv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl tetrahydrothiopyran-3-carboxylate;

(lxxxv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl tetrahydrothiopyran-4-carboxylate;

(lxxxvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2,6-dimethylpyridine-4-carboxylate;

(lxxxvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2,6-dimethylpyridine-3-carboxylate;

(lxxxviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3,6-dimethylpyridazine-4-carboxylate;

(lxxxix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-cyclopropyloxazole-4-carboxylate;

(xc) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-ethyl-5-methyl-pyrazole-3-carboxylate;

(xci) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1,3,5-trimethylpyrazole-4-carboxylate;

(xcii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-ethyl-5-methyl-isoxazole-4-carboxylate;

(xciii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-acetylpyrrolidine-3-carboxylate;

(xciv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 4,5-dimethylthiazole-2-carboxylate;

(xcv) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2,4-dimethylthiazole-5-carboxylate;

(xcvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1,1-dioxothiolane-3-carboxylate;

(xcvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3,5-diethylisoxazole-4-carboxylate;

(xcviii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-acetylpiperidine-3-carboxylate;

(xcix) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-acetylpiperidine-4-carboxylate;

(c) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 2-methoxy-4-methyl-thiazole-5-carboxylate;

(ci) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 3-methylbenzimidazole-5-carboxylate;

(cii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1,1-dioxothiane-3-carboxylate;

(ciii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1,1-dioxothiane-4-carboxylate;

(civ) O3-[3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl] O1-methyl piperidine-1,3-dicarboxylate;

(cv) O4-[3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl] O1-methyl piperidine-1,4-dicarboxylate;

(cvi) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-(dimethylcarbamoyl)piperidine-3-carboxylate;

(cvii) 3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)propyl 1-(dimethylcarbamoyl)piperidine-4-carboxylate;

(cviii) [(2R)-3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)-2-methyl-propyl] tetrahydrofuran-3-carboxylate;

(cix) [(2R)-3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)-2-methyl-propyl] tetrahydropyran-4-carboxylate;

(cx) [3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)-2,2-dimethyl-propyl] tetrahydrofuran-3-carboxylate;

(cxi) [3-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)-2,2-dimethyl-propyl] tetrahydropyran-4-carboxylate;

(cxii) 4-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)butyl 2-methyloxazole-5-carboxylate;

(cxiii) 4-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)butyl isothiazole-4-carboxylate;

(cxiv) 4-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)butyl thiazole-4-carboxylate;

(cxv) 4-(3-ethyl-4-oxo-spiro[6,8-dihydro-5H-pyrazolo[4,3-c]azepine-7,4′-tetrahydropyran]-1-yl)butyl tetrahydropyran-4-carboxylate;

or a pharmaceutically acceptable salt, hydrate or solvate thereof.

8. A pharmaceutical composition comprising a compound according to claim 1 and one or more pharmaceutically acceptable vehicles or excipients and/or pharmaceutically acceptable carriers.

9. The pharmaceutical composition according to claim 8 further comprising one or more other therapeutically active compounds.