6-11 bicyclic ketolide derivatives
View Patent ↗The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
1. A compound represented by the formula:
or its pharmaceutically acceptable salt, or ester,
wherein
R p is a hydroxy protecting group;
R 1 is independently selected from:
(1) aryl;
(2) substituted aryl;
(3) heteroaryl; or
(4) substituted heteroaryl;
R 2 is independently selected from:
(1) hydrogen;
(2) halogen;
(3) C 1 -C 12 alkyl optionally containing 0, 1, 2, or 3 heteroatoms selected from O, S or N, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
(4) C 2 -C 12 alkenyl optionally containing 0, 1, 2, or 3 heteroatoms selected from O, S and N, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl, or substituted heteroaryl; or
(5) C 2 -C 12 Alkynyl optionally containing 0, 1, 2, or 3 heteroatoms selected from O, S and N, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
n=0, 1 or 2;
R 11 is independently hydrogen, R 1 or R 2 , where R 1 and R 2 are as previously defined;
A and B taken together with the carbon atom to which they are attached are selected from:
a) C═O;
b) C═N—O—R 11 , where R 11 is as previously defined;
c) C═N—O—Ar 1 —M—Ar 2 , wherein
(1) —Ar 1 — is R 31 , where R 31 is independently selected from:
(a) R 1 , where R 1 is as previously defined;
(b) C 1 -C 12 alkyl optionally containing 0, 1, 2, or 3 heteroatoms selected from O, S or N, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
(c) C 2 -C 12 alkenyl optionally containing 0, 1, 2, or 3 heteroatoms selected from O, S and N, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl, or substituted heteroaryl; or
(d) C 2 -C 12 alkynyl optionally containing 0, 1, 2, or 3 heteroatoms selected from O, S and N, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
(2) —M— is absent or selected from:
(a) —C 1 -C 12 alkyl optionally containing:
0-3 heteroatoms selected from O, S or N; and
0-3 groups selected from —CN—, —N═N—, —C(O)—
(b) —C 2 -C 12 alkenyl optionally containing:
0-3 heteroatoms selected from O, S or N; and
0-3 groups selected from —C═N—, —N═N—, —C(O)—;
(c) —C 2 -C 1 -2 alkynyl optionally containing;
0-3 heteroatoms selected from O, S or N; and
0-3 groups selected from —C═N—, —N═N—, —C(O)—;
(d) substituted aryl;
(e) substituted heteroaryl; or
(f) substituted heterocyclo alkyl; and
(3) —Ar 2 is selected from:
(a) aryl;
(b) substituted aryl;
(c) heteroaryl; or
(d) substituted heteroaryl;
one of X and Y is hydrogen and the other is selected from:
a) hydrogen;
b) deuterium;
c) —OH;
d) —OR p , where R p is as previously defined;
e) —NR 4 R 5 , where R 4 and R 5 are each independently selected from:
(1) hydrogen;
(2) C 1 -C 12 alkyl, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl and substituted heteroaryl; or
(3) R 4 and R 5 , taken together with the nitrogen atom to which they are attached form a 3-10 membered heteroalkyl ring containing 0-2 additional hetero atoms selected from O, S and N; or
alternatively, X and Y Taken Together with the Carbon Atom to which they are Attached are selected from:
a) C═O;
b) C═N—Q, wherein Q is selected from:
(1) —R 11 , where R 11 is as previously defined;
(2) amino protecting group;
(3) —C(O)R 11 , where R 11 , is as previously defined;
(4) —OR 6 , where R 6 is independently selected from:
(a) hydrogen;
(b) —CH 2 O(CH 2 ) 2 OCH 3 ,
(c) —CH 2 O(CH 2 O) n CH 3 , where n is as previously defined;
(d) —C 1 -C 12 alkyl, optionally substituted with one or more substituents selected from aryl, substituted aryl, heteroaryl or substituted heteroaryl;
(e) —C 3 -C 12 cycloalkyl;
(f) —C(O)—C 1 -C 12 alkyl;
(g) —C(O)—C 3 -C 12 cycloalkyl;
(h) —C(O)—R 1 , where R 1 is as previously defined; or
(i) —Si(R a )(R b )(R c ), wherein R a , R b and R c are each independently selected from C 1 -C 1 -2 alkyl, aryl or substituted aryl; or
(5) O—C(R 7 )(R 8 )—O—R 6 , where R 6 is as previously defined, provided that R 6 is not C(O)—C 1 -C 12 alkyl, C(O)—C 3 -C 12 cycloalkyl, or C(O)R 1 , and R 7 and R 8 taken together with the carbon atom to which they are attached form a C 3 -C 12 cycloalkyl group or each independently is selected from:
(a) hydrogen; or
(b) C 1 -C 12 alkyl;
L is selected from:
a) —CH(OH)CH 3 ;
b) C 1 -C 6 alkyl, optionally substituted with one or more substituents selected from aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
c) C 2 -C 6 alkenyl, optionally substituted with one or more substituents selected from aryl, substituted aryl, heteroaryl, or substituted heteroaryl; or
d) C 2 -C 6 alkynyl, optionally substituted with one or more substituents selected from aryl, substituted aryl, heteroaryl, or substituted heteroaryl; or
W is —NR 20 R 21 , where R 20 and R 21 are each independently selected from:
a) hydrogen;
b) C 1 -C 12 alkyl, optionally substituted with one or more substituents selected from halogens aryl, substituted aryl, heteroaryl or substituted heteroaryl;
c) C 2 -C 12 alkenyl, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl or substituted heteroaryl;
d) C 2 -C 12 alkynyl, optionally substituted with one or more substituents selected from halogen, aryl, substituted aryl, heteroaryl or substituted heteroaryl; or
e) R 20 and R 21 , taken together with the nitrogen atom to which they are attached form a heterocycloalkyl moiety, or
Z is selected from:
a) hydrogen;
b) methyl; or
c) halogen; and
R 2 ′ is hydrogen or R p , where R p is as previously defined.
2. A compound according to claim 1 which is represented by the formula:
wherein A, B, R 2 ′, Q, W, and Z are as defined in claim 1 .
3. A compound according to claim 1 which is represented by the formula:
wherein A, B, R 2 ′, Q, and Z are as defined in claim 1 .
4. A compound according to claim 1 which is represented by the formula:
wherein Ar 1 , Ar 2 , R 2 ′, M, Q, W, and Z are as defined in claim 1 .
5. A compound according to claim 1 which is represented by the formula:
wherein Ar 1 , Ar 2 , R 2 ′, M, Q and Z are as defined in claim 1 and Ac is acetyl.
6. A compound according to claim 1 which is represented by the formula:
wherein Ar 1 , Ar 2 , R 2 ′, M, and Z are as defined in claim 1 .
7. A compound according to claim 1 which is represented by the formula:
wherein Ar 1 , Ar 2 , R 2 ′, M, and Q are as defined in claim 1 .
8. A compound according to claim 1 which is selected from:
(1) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═O, X and Y taken together with the carbon atom to which they attached are C═N—Ac, L-CH 2 CH 3 , Z═H and R 2 ′═H;
(2) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—CH 2 —Ph, X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(3) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—CH 2 -(3-pyridyl), X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(4) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—CH 2 -(2-pyridyl), X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(5) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—CH 2 -(3-quinolyl), X and Y taken together with the carbon atolls to which they are attached are CN—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(6) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—CH 2 -(2-quinolyl), X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(7) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—(5-pyridin-2-ylthiophen-2yl)-methyl, X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(8) Compound of formula I: A and B taken together with the carbon atom to which they are attached are CN—O—(3-pyrimidin-2-ylprop-2-ynyl), X and Y taken together with the carbon atom to which they are attached are C—N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(9) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—Ph, X and Y taken together with the carbon atom to which they are attached are C—N—Ac, L═CH 2 CH 3 , Z═H and R 2 ′═H;
(10) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═O, X and Y taken together with the carbon atom to which they are attached are C═N—O—CH 2 —O—CH 3 , L═CH 2 CH 3 , Z═H and R 2 ′═H;
(11) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═NOCH 2 —Ph, X and Y taken together with the carbon atom to which they are attached are C═N—O—CH 2 —O—CH 3 , L═CH 2 CH 3 , Z═H and R 2 ′═H;
(12) Compound of formula I: A and B taken together with the carbon atom to which they are attached are COO, X and Y taken together with the carbon atom to which they are attached are C═O, L═CH 2 CH 3 , Z═H and R 2 ′═Ac;
(13) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═O, X and Y taken together with the carbon atom to which they are attached are C═O, L═CH 2 CH 3 , Z═H, and R 2 ′═H;
(14) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—CH 2 —Pb, X and Y taken together with the carbon atom to which they are attached are C═O, L═CH 2 CH 3 , Z═H, and R 2 ′═H
(15) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O—(CH 2 ) 2 —Ph, X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H, and R 2 ′═H;
(16) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—O(CH 2 ) 3 —Ph, X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H, and R 2 ′═H; or
(17) Compound of formula I: A and B taken together with the carbon atom to which they are attached are C═N—CH 2 —CH═CH—Ph, X and Y taken together with the carbon atom to which they are attached are C═N—Ac, L═CH 2 CH 3 , Z═H, and R 2 ′═H.
9. A pharmaceutical composition comprising a therapeutically effective amount of a compound of claim 1 or a pharmaceutically-acceptable salt, or ester thereof, in combination with a pharmaceutically acceptable carrier.
10. A method for treating a bacterial infection in a subject in need of such treatment, comprising administering to said subject a therapeutically-effective amount of a pharmaceutical composition according to claim 9 .
11. A process for preparing a compound represented by the formula
where V is selected from: N—Q or O; Hx is halogen or methyl; and A, B, Q, and R 2 ′ are as defined in claim 1 , comprising the step of
(a) reacting a compound represented by the formula
where A, B, V, and R 2 are as previously defined in claim 1 , with a halogenating agent or methylating agent in the presence of a base.
12. A process for the preparation of a compound represented by the formula
where V is selected from N—Q or O; and Q, Ar 1 , M, Ar 2 and R 2 ′ are as defined in claim 1 , comprising the steps of:
(a) reacting a compound represented by the formula (Ia)
where V and R 2 ′ are as previously defined in claim 1 , with a reagent or reagents capable of performing oxidative cleavage
to provide a compound represented by the formula (Ib)
where V and R 2 ′ are as previously defined in claim 1 ;
(b) reacting a compound of formula (Ib) from step (a) with an oxidizing agent to provide a compound represented by the formula (Ic)
where V and R 2 ′ as previously defined in claim 1 ; and
(c) reacting a compound of formula (Ic) from step (b) with a compound of the formula Ar 2 —M—Ar 1 —O—NH 2 , wherein Ar 1 , Ar 2 , and M are defined as in claim 1 , in the presence of an acid or a base; and
(d) optionally deprotecting the compound from step (c).
13. A process for the preparation of a compound represented by the formula:
where V is selected from N—Q or O; and Q, Ar 1 , M, Ar 2 and R 2 ′ ale as defined in claim 1 , comprising the steps of:
(a) reacting a compound represented by the formula (Ib)
where V and R 2 ′ are as previously defined in claim 1 , with a compound of the formula Ar 2 —M—Ar 1 —O—N 2 , wherein Ar 1 , Ar 2 , and M are defined as in claim 1 , in the presence of an acid or a base;
(b) reacting a compound from step (a) with an oxidizing; and
(c) optionally deprotecting the compound formed in step (b).
14. A process for the preparation of a compound represented by the formula
where V is selected from N—Q or O; and Q, Ar 1 , M, Ar 2 , R 2 ′, and Z are as defined in claim 1 , comprising the steps of:
(a) reacting a compound represented by the formula (Ia)
where V and R 2 ′ are as previously defined in claim 1 , with an oxidizing agent to provide a 3-keto compound represented by the formula (Ib)
where V and R 2 are as previously defined in claim 1 ;
(b) reacting a compound of formula (Ib) with a halogenating agent or a methylating agent in the presence of a base to provide a compound represented by the formula (Ic)
where V, Z and R z are as previously defined in claim 1 ;
(c) reacting a compound of formula (Ic) with a reagent or regents capable of performing oxidative cleavage to provide a compound represented by the formula (Id)
where V, Z and R 2 are as previously defined in claim 1 ;
(d) reacting a compound of formula (Id) ith a compound of the formula Ar 2 —M—Ar 1 —O—NH 2 , wherein Ar 1 , Ar 2 , and M are defined as in claim 1 , in the presence of an acid or a base; and
(e) optionally deprotecting of a compound from step (d).
15. A process of any of claims 12 , 13 , or 14 , further comprising the step of deprotecting.
16. A compound according to claim 1 , wherein A and B taken together with the carbon to which they are attached are C═O and X and Y taken together with the carbon atom to which they are attached are C═N—Q.
17. A compound according to claim 1 , wherein A and B taken together with the carbon to which they are attached are C—O, X and Y taken together with the carbon atom to which they are attached are C═N—Q, and W is N(CH 3 ) 2 .
18. A compound according to claim 1 , wherein A and B taken together with the carbon to which they are attached are C═O, X and Y taken together with the carbon atom to which they are attached are C═N—Ac, and W is N(CH 3 ).
19. A compound of formula VI of claim 5 , wherein Ar 1 is —CH 2 —(heteroaryl) or —CH 2 -substituted heteroaryl).
20. A compound of claim 19 , wherein the heteroaryl is independently selected from:
a. pyridinyl;
b. pyrazinyl;
c. pyridinyl;
d. pyrrolyl;
e. pyrazolyl
f. imidazolyl;
g. thiazolyl;
h. oxazolyl;
i. isoxazolyl;
j. thiadiazolyl;
k. oxadiazolyl;
l. thiophenyl;
m. furanyl;
n. quinolinyl;
o. isoquinolinyl;
p. benzimidazolyl;
q. benzoxazolyl; or
r. quinoxalinyl.
21. A compound according to claim 19 or 20 ; wherein M is absent.
22. A compound according to claim 19 or 20 , wherein M is absent and Ar 2 is heteroaryl or substituted heteroaryl.
23. A compound according to claim 22 , wherein heteroaryl is selected from:
a. pyridinyl;
b. pyrazinyl;
c. pyrimidinyl;
d. pyrrolyl;
e. pyrazolyl
f. imidazolyl;
g. thiazolyl;
h. oxazolyl;
i. isoxazolyl;
j. thiadiazolyl;
k. oxadiazolyl;
l. thiophenyl;
m. furanyl;
n. quinolinyl;
o. isoquinolinyl;
p. benzimidazolyl;
q. benzoxazolyl; or
r. quinoxalinyl.
24. A compound of formula I of claim 1 , wherein A and B taken together with the carbon atom to which they are attached are C═N—O—R 11 , X and Y taken together with the carbon atom to which they are attached are C—N—Q, L is ethyl, and W is N(CH 3 ).
25. A compound of claim 24 , selected from compounds delineated in the following table:
Number
Q
—R 11
Z
R 2 ′
(1)
Ac
H
H
(2)
Ac
H
H
(3)
Ac
H
H
(4)
Ac
H
H
(5)
Ac
H
H
(6)
Ac
H
H
(7)
Ac
H
H
(8)
MOM
H
H
(9)
Ac
H
H
(10)
Ac
H
H
(11)
Ac
H
H
(12)
Ac
H
H
(13)
Ac
H
H
(14)
Ac
H
H
(15)
Ac
H
H
(16)
Ac
H
H
(17)
Ac
H
H
(18)
Ac
H
H
(19)
Ac
H
H
(20)
Ac
H
H
(21)
Ac
H
H
(22)
Ac
H
H
(23)
Ac
H
H
(24)
Ac
H
H
(25)
Ac
H
H
(26)
Ac
H
H
(27)
Ac
H
H
(28)
Ac
H
H
(29)
Ac
H
H
(30)
Ac
H
H
(31)
Ac
F
H
(32)
Ac
F
H
(33)
Ac
H
H
(34)
Ac
F
H
(35)
Ac
H
H
(36)
Ac
H
H
(37)
Ac
H
H
(38)
Ac
H
H
(39)
Ac
H
H
(40)
Ac
H
H
(41)
Ac
H
H
(42)
Ac
H
H
(43)
Ac
H
H
(44)
Ac
H
H
(45)
Ac
H
H
(46)
Ac
H
H
(47)
Ac
H
H
(48)
Ac
H
H
(49)
Ac
H
H
(50)
Ac
H
H
(51)
Ac
H
H
(52)
Ac
H
H
(53)
Ac
H
H
(54)
Ac
H
H
(55)
Ac
H
H
(56)
H
H
H
(57)
Ac
H
H
(58)
Ac
H
H
(59)
Ac
F
H
(60)
Ac
H
H
(61)
Ac
H
H
(62)
Ac
H
H
(63)
Ac
H
H
(64)
Ac
H
H
(65)
Ac
H
H
(66)
Ac
H
H
(67)
Ac
H
H
(68)
H
H
H
(69)
Ac
H
H
(70)
Ac
H
H
26. A compound of formula VI of claim 5 , selected from compounds delineated in the following table:
Number
Q
—Ar 1 —M—Ar 2
Z
R 2 ′
(1)
Ac
H
H
(2)
Ac
H
H
(3)
Ac
H
H
(4)
Ac
H
H
(5)
Ac
H
H
(6)
Ac
H
H
(7)
Ac
H
H
(8)
Ac
H
H
(9)
Ac
H
H
(10)
Ac
H
H
(11)
Ac
H
H
(12)
Ac
H
H
(13)
Ac
H
H
(14)
Ac
H
H
(15)
Ac
F
H
(16)
Ac
F
H
(17)
Ac
H
H
(18)
Ac
H
H
(19)
Ac
H
H
(20)
Ac
H
H
(21)
Ac
H
H
(22)
Ac
H
H
(23)
Ac
H
H
(24)
Ac
H
H
(25)
Ac
H
H
(26)
Ac
F
H
(27)
Ac
H
H
(28)
Ac
H
H
(29)
Ac
H
H
(30)
Ac
H
H
(31)
Ac
H
H
(32)
Ac
F
H
(33)
Ac
H
H
(34)
Ac
H
H
(35)
Ac
H
H
(36)
Ac
F
H
(37)
Ac
H
H
(38)
H
H
H
(39)
Ac
H
H
(40)
Ac
H
H
(41)
H
H
H
(42)
Ac
H
H
(43)
H
H
H
(44)
H
H
H
(45)
H
H
H
(46)
Ac
H
H
(47)
Ac
H
H
(48)
Ac
H
H
(49)
H
H
H
(50)
H
H
H
(51)
Ac
H
H
(52)
H
H
H
(53)
Ac
H
H
(54)
Ac
H
H
(55)
Ac
F
H
(56)
H
F
H
(57)
H
H
H
(58)
Ac
H
H
(59)
Ac
H
H
(60)
Ac
H
H
(61)
Ac
F
H
(62)
Ac
H
H
(63)
Ac
H
H
(64)
Ac
H
H
(65)
Ac
H
H
(66)
Ac
H
H
(67)
Ac
H
H
(68)
Ac
H
H
(69)
Ac
H
H
(70)
Ac
H
H
(71)
Ac
H
H
(72)
Ac
H
H
(73)
Ac
H
H
(74)
Ac
H
H
(75)
Ac
H
H
(76)
Ac
H
H
(77)
Ac
H
H
(78)
Ac
H
H
(79)
Ac
H
H
(80)
Ac
H
H
(81)
Ac
H
H
(82)
Ac
H
H
(83)
Ac
H
H
(84)
Ac
H
H
(85)
Ac
H
H
(86)
Ac
H
H
(87)
Ac
H
H
.