Renin inhibitors
The present invention relates to novel renin inhibitors of the general Formula (I), and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds. These novel renin inhibitors are used in treating cardiovascular events and renal insufficiency.
1. A compound of formula I, or a pharmaceutically acceptable salt thereof, or an optical isomer thereof, having the formula I
wherein,
m is 1 or 2;
n, in each instance in which it occurs, is independently 0, 1 or 2;
p, in each instance in which it occurs, is independently 0, 1 or 2;
X and X 1 are each independently selected from the group consisting of CH 2 , O, and S(O) p , provided that when both X and X 1 are each independently O or S(O) p , m is 2;
Y is selected from the group consisting of N(R a ), CH(R a ), O, and S(O) p ;
R 1 , R 3 , and R a are each independently selected from the group consisting of H, C 1 -C 6 alkyl and C 2 -C 6 alkenyl, wherein the alkyl and alkenyl group is unsubstituted or substituted with one, two, three or four substituents independently selected from:
1) OH,
2) CN,
3) CF 3 ,
4) COOH,
5) C 1 -C 6 alkoxy,
6) C(O)R b ,
7) C(O)N(R c ) 2 ,
8) S(O) p C 1 -C 6 alkyl,
9) SO 2 N(R c ) 2 ,
10) N(R c ) 2 ,
11) NHC(O)R b ,
12) NHC(O)NHR d ,
13) NHC(S)NHR d , and
14) NH(NR c )NHR c ;
R 4 is selected from the group consisting of H, C 1 -C 6 alkyl and C 2 -C 6 alkenyl, wherein the alkyl and alkenyl group is unsubstituted or substituted with one, two, three or four substituents independently selected from:
1) OH,
2) CN,
3) CF 3 ,
4) COOH,
5) C 1 -C 6 alkoxy,
6) C(O)R b ,
7) C(O)N(R c ) 2 ,
8) S(O) p C 1 -C 6 alkyl,
9) SO 2 N(R c ) 2 ,
10) N(R c ) 2 ,
11) NHC(O)R b ,
12) NHC(O)NHR d ,
13) NHC(S)NHR d , and
14) NH(NR c )NHR c ;
R 5 is selected from the group consisting of hydrogen and —C(NH(NH 2 ));
R 2 and R b are independently selected from the group consisting of H, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 1 -C 6 alkoxy, CF 3 and CH 2 CF 3 ;
R c is selected from the group consisting of H, C 1 -C 6 alkyl and CH 2 CF 3 ;
R d is selected from the group consisting of H and C 1 -C 6 alkyl, wherein the alkyl group is unsubstituted or substituted with one, two, three or four substituents selected from the group consisting of:
1) OH,
2) CN,
3) CF 3 ,
4) COOH, and
5) C(O)NHR c ;
Ar 1 is an unsubstituted or substituted aryl ring wherein the substituted aryl ring is substituted with one, two three or four substituents independently selected from the group consisting of:
1) OH,
2) CN,
3) halogen,
4) N 3 ,
5) NO 2 ,
6) COOH,
7) OCF 2 H,
8) CF 3 ,
9) C 1 -C 6 alkyl,
10) C 2 -C 6 alkenyl,
11) C 1 -C 6 alkoxy,
12) C(O)C 1 -C 6 alkyl, and
13) S(O) p C 1 -C 6 alkyl,
wherein substituents (9)-(13) are unsubstituted or substituted with one, two three or four substituents independently selected from the group consisting of:
a) OH,
b) COOH,
c) CN,
d) CF 3 ,
e) C 1 -C 6 alkoxy,
f) S(O) p C 1 -C 6 alkyl; and
Ar 2 is independently selected from the group consisting of Ar 1 and a 9- or 10-membered fused bicyclic aryl, wherein the fused bicyclic aryl is unsubstituted or substituted with one, two, three or four substituents independently selected from the group consisting of:
1) OH,
2) CN,
3) halogen,
4) N 3 ,
5) NO 2 ,
6) COOH,
7) OCF 2 H,
8) CF 3 ,
9) C 1 -C 6 alkyl,
10) C 1 -C 6 alkyl,
11) C 2 -C 6 alkenyl,
12) C 1 -C 6 alkoxy,
13) C(O)C 1 -C 6 alkyl,
14) S(O) p C 1 -C 6 alkyl,
15) —OC(O)NH(C 1 -C 6 alkylene)C(O)NH 2 , and
16) —OC(O)NH(C 1 -C 6 alkylene)(OH)R d ;
wherein substituents (10)-(14) are unsubstituted or substituted with one, two three or four substituents independently selected from the group consisting of:
a) OH,
b) COOR d ,
c) CN,
d) CF 3 ,
e) C 1 -C 6 alkoxy,
f) S(O) p C 1 -C 6 alkyl,
g) —C(O)NH 2 ,
h) —COONa,
i) —NR d R d , and
j) —NR d C(O)R d .
2. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein Y is CH(R a ) and R 1 is H.
3. A compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein Y is CH(R a ), R 1 is H, and n is 1.
4. A compound of claim 3 , or a pharmaceutically acceptable salt thereof, wherein Y is CH 2 and R 2 is C 1 -C 6 alkyl or C 2 -C 6 alkenyl.
5. A compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 2 is C 1 -C 6 alkyl or C 2 -C 6 alkenyl.
6. A compound of claim 5 , or a pharmaceutically acceptable salt thereof, wherein R 2 is C 3 -C 6 cycloalkyl.
7. A compound or a pharmaceutically acceptable salt thereof, selected from the group consisting of:
N-{3-[(Acetyl-methyl-amino)-methyl]-benzyl}-2-aminomethyl-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propionamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-benzyl}-N-(2,3-dimethyl-benzyl)-propionamide,
2-Aminomethyl-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-N-[3-(2-methanesulfonyl-ethyl)-benzyl]-propionamide,
5-(2-[Cyclopropyl-(2,3-dichloro-benzyl)-carbamoyl]-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propylamino)-pentanoic acid methyl ester,
6-(2-[Cyclopropyl-(2,3-dichloro-benzyl)-carbamoyl]-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propylamino)-hexanoic acid,
6-(2-[Cyclopropyl-(2,3-dichloro-benzyl)-carbamoyl]-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propylamino)-hexanoic acid methyl ester,
N-Cyclopropyl-N-(2,3-dichloro-benzyl)-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-2-[(2,2,2-trifluoro-ethylamino)-methyl]-propionamide,
2-Aminomethyl-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-N-[3-(3-methoxy-propyl)-benzyl]-propionamide,
2-Aminomethyl-N-[2-chloro-5-(3-methoxy-propyl)-benzyl]-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propionamide,
2-[(2-[Cyclopropyl-(2,3-dichloro-benzyl)-carbamoyl]-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propylamino)-methyl]-cyclopropanecarboxylic acid,
2-[(2-[Cyclopropyl-(2,3-dichloro-benzyl)-carbamoyl]-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propylamino)-methyl]-cyclopropanecarboxylic acid ethyl ester,
2-Aminomethyl-3-{4-[3-(2-chloro-3,6-difluoro-phenoxy)-propyl]-phenyl}-N-cyclopropyl-N-[3-(3-methoxy-propyl)-benzyl]-propionamide,
2-Aminomethyl-3-{4-[3-(2-chloro-3,6-difluoro-phenoxy)-propyl]-phenyl}-N-[2-chloro-5-(3-methoxy-propyl)-benzyl]-N-cyclopropyl-propionamide,
3-Amino-N-cyclopropyl-N-(2,3-dichloro-benzyl)-2-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethyl]-benzyl}-propionamide,
2-Aminomethyl-3-{4-[3-(2-chloro-3,6-difluoro-phenoxy)-propyl]-phenyl}-N-cyclopropyl-N-(2,3-dichloro-benzyl)-2-methyl-propionamide,
3-Amino-N-cyclopropyl-N-(2,3-dichloro-benzyl)-2-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-benzyl}-propionamide,
2-Aminomethyl-N-cyclopropyl-N-(2,3-dichloro-benzyl)-3-{4-[3-(2,6-dichloro-4-methyl-phenoxy)-propyl]-phenyl}-propionamide,
3-{4-[3-(2-Chloro-3,6-difluoro-phenoxy)-propyl]-phenyl}-N-cyclopropyl-N-(2,3-dichloro-benzyl)-2-methylaminomethyl-propionamide,
2-(Benzylamino-methyl)-3-{4-[3-(2-chloro-3,6-difluoro-phenoxy)-propyl]-phenyl}-N-cyclopropyl-N-(2,3-dichloro-benzyl)-propionamide,
2-Aminomethyl-3-{4-[3-(2-chloro-3,6-difluoro-phenoxy)-propyl]-phenyl}-N-cyclopropyl-N-(2,3-dichloro-benzyl)-propionamide,
2-Aminomethyl-N-[2-chloro-5-(2-methoxy-ethyl)-benzyl]-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-propionamide,
Methyl (2R)-2-{2-[(3-[cyclopropyl(2,3-dichlorobenzyl)amino]-2-{4-[2-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-3-oxopropyl)amino]ethyl}-3-methylbutanoate,
Methyl (2S)-2-{2-[(3-[cyclopropyl(2,3-dichlorobenzyl)amino]-2-{4-[2-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-3-oxopropyl)amino]ethyl}-3-methylbutanoate,
N-Cyclopropyl-N-(2,3-dichlorobenzyl)-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-3-{[2-(2-napthyl)ethyl]amino}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}butanamide,
3-Amino-N-[2-chloro-5-(3-hydroxypropyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethoxy)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethyl]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethyl]benzyl}propanamide,
3-Amino-N-{2-chloro-5-[3-(dimethylamino)propyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-N-[2,3-dichloro-5-[3-methoxypropyl)benzyl}-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-N-[2,3-dichloro-5-[3-methoxypropyl)benzyl}-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethyl]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-cyanoethyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-[5-(3-methoxypropyl)-2-methylbenzyl]propanamide,
3-Amino-N-[2-chloro-5-(2-cyanomethyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-[5-(3-methoxyethyl)-2-methylbenzyl]propanamide,
3-Amino-N-[2,5-bis(trifluoromethyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-(1-phenylethyl)propanamide,
3-Amino-N-benzyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-methylpropanamide,
3-Amino-N-benzyl-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-benzyl-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-(2-phenylethyl)propanamide,
3-Amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-methyl-N-(2-phenylethyl)propanamide,
3-Amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-methyl-N-(1-phenylethyl)propanamide,
3-Amino-N-(2,3-dichlorobenzyl)-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-(2,2,2-trifluoroethyl)propanamide,
3-Amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-methyl-N-(1-methyl-1-phenylethyl)propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-N-(cyclopropyl)methyl)-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-methylpropanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-N-(cyclobutylmethyl)-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-isopropylpropanamide,
N-Allyl-3-amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-N-cyclobutyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[2-chloro-5-(2-methoxyethyl)benzyl]-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-ethylpropanamide,
3-{[Amino(imino)methyl]amino}-N-[2-chloro-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
2-{[Amino(imino)methyl]amino}-N-cyclopropyl-N-(2,3-dichlorobenzyl)-3-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
2-Amino-N-[2-chloro-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
2-{[Amino(imino)methyl]amino}-N-[2-chloro-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-3-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-[3-hydroxy-5-(3-methoxypropyl)benzyl]propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-[3-(2-methoxyethoxy)-5-(3-methoxypropyl)benzyl]propanamide,
3-Amino-N-[3-(3-cyanopropoxy)-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-{3-(3-methoxypropyl)-5-[(3-methylthio)propoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-{3-(3-methoxypropyl)-5-[(3-methylsulfonyl)propoxy]benzyl}propanamide,
3-Amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}-N-[3-(3-methoxypropyl)-5-{[4-(methylsulfonyl)benzyl]oxy}benzyl)propanamide,
Ethyl 2-{[3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenoxy]methyl}cyclopropanecarboxylate,
Sodium 2-{[3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenoxy]methyl}cyclopropanecarboxylate,
Ethyl 2-{[3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-chloro-5-(3-methoxypropyl)phenoxy]methyl}cyclopropanecarboxylate,
Sodium 2-{[3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-chloro-5-(3-methoxypropyl)phenoxy]methyl}cyclopropanecarboxylate,
Ethyl 2-[3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenoxy]-2-methylpropanoate,
Sodium 2-[3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenoxy]-2-methylpropanoate,
3-Amino-N-[3,5-bis(2-methoxyethoxy)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[3,5-bis(4,4,4-trifluorobutoxy)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-Amino-N-[3-(2-amino-2-oxoethoxy)-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
3-{[(3-Amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenyl ethylcarbamate,
3-{[(3-Amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenyl(3-amino-2,2-dimethyl-3-oxopropyl)carbamate,
3-{[(3-Amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-5-(3-methoxypropyl)phenyl (2-hydroxypropyl)carbamate,
Ethyl 3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-bromophenoxy)acetate,
Ethyl 3-(3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-bromophenoxy)propanoate,
Ethyl 5-(3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-bromophenoxy)pentanoate,
Sodium 3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-bromophenoxy)acetate,
Sodium 5-(3-{[(3-amino-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanoyl)(cyclopropyl)amino]methyl}-2-bromophenoxy)pentanoate,
2-{4-[2-(4-Allyl-2,6-dichlorophenoxy)ethoxy]benzyl}-3-amino-N-[2-chloro-5-(3-methoxypropyl)benzyl]-N-cyclopropanamide,
3-Amino-N-[2-chloro-5-(3-methoxypropyl)benzyl]-N-cyclopropyl-2-(4-{2-[2,6-dichloro-4-(3-hydroxypropyl)phenoxy]ethoxy}benzyl}propanamide,
N-(5-{[Acetyl(methyl)amino]methyl}-2-chlorobenzyl)-3-amino-N-cyclopropyl-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}propanamide,
4-Amino-N-cyclopropyl-N-(2,3-dichlorobenzyl)-2-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]benzyl}butanamide,
4-Amino-N-cyclopropyl-N-(2,3-dichlorobenzyl)-2-{4-[3-(2,6-dichloro-4-methylphenoxy)propyl]benzyl}butanamide, and
N-Cyclopropyl-N-(2,3-dichlorobenzyl)-O-[2-(2,6-dichloro-4-methylphenoxy)ethyl]tyrosinamide.
8. A pharmaceutical composition comprising an effective amount of a compound according to claim 1 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.