Cyclosporin derivatives
The present invention relates to novel cyclosporin derivatives that do not cross the cellular membrane. The compounds according to the invention are used in medicine, more particularly in the treatment/diagnosis of acute and chronic inflammatory diseases, viral infections, cancer, degenerative muscle diseases, neurodegenerative diseases and damage that is associated with calcium homeostasis impairment. The novel cyclosporin derivatives additionally have no immunosuppressive effect.
1. A compound of the following formula:
L selected from a group consisting of: a bond, —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 —, —CH 2 CH 2 CH 2 CH 2 —, —CH═CH—, —CH═CHCH 2 —, —CH 2 CH═CH—, —CH 2 CH 2 CH═CH—, —CH 2 CH═CHCH 2 —, —CH═CHCH 2 CH 2 , —OCH 2 —, —OCH 2 CH 2 —, —OCH 2 CH 2 CH 2 —, —OCH 2 CH═CH—, —CONH—, —CONHCH 2 — or —CONHCH 2 CH 2 —, —CONHCH 2 CH 2 OCH 2 CH 2 — and —CONHCH 2 CH 2 OCH 2 CH 2 OCH 2 CH 2 —;
R 2 selected from a group consisting of: a polar deprotonizable group P s , a group P s ′ that under physiological conditions can be converted to the group P s , a polar protonizable group P b and a group P b ′ that under physiological conditions can be converted to the group P b ;
R 3 selected from a group consisting of: H, (C1-C6)-alkyl, (C1-C6)-alkoxy, —OH, (C1-C6)-alklthio, (C1-C6)-alkylsulfonyl, —SH, —CF 3 , —COOH, —COO((C1-C6)alkyl), —CONH 2 , —CONH((C1-C6)alkyl), —CON((C1-C6)alkyl) 2 , nitro, halogen, cyano, amino, (C1-C6)alkyl-amino and (C1-C6)dialkyl-amino;
R 4 and R 5 are independently of each other and selected from a group consisting of: H, (C1-C6)-alkyl, (C1-C6)-alkoxy, —CF 3 and halogen, or if R 4 and R 5 are situated on the ring in ortho position, then they can form together a —OCH 2 O— or —OCH 2 CH 2 O— group; and
pharmaceutically acceptable salts, as well as a tautomeric, enantiomeric or other stereoisomeric form thereof.
2. The compound according to claim 1 , wherein R 2 is selected from the group consisting of: —COOH, —CONH 2 , —CONHNH 2 , —SO 3 H, —SO 2 NH 2 , —COOCH 3 , —COOCH 2 CH 3 , —COOCH 2 CH 2 CH 3 , —COOCH 2 CH 2 CH 2 CH 3 , —COOCH 2 CH(CH 2 CH 3 ) 2 , —COOCH(CH 3 ) 2 , —COOC(CH 3 ) 3 , —COOCH 2 CH 2 N(CH 3 ) 2 , —COOCH 2 CH 2 (morpholin-4-yl),
3. The compound according to claim 1 , wherein L is selected from the group consisting of: a bond, —CH 2 —, —CH 2 CH 2 —, —CH═CH—, —CONH— and —OCH 2 —.
4. The compound according to claim 1 , wherein R 3 is selected from the group consisting of: H, —COOH, —CH 3 , —OCH 3 , F, Cl, Br and CN.
5. The compound according to claim 1 , wherein R 4 and R 5 are independently of each other H or F.
6. The compound according to claim 1 , wherein the compound of the formula is one of the following:
7. A pharmaceutical composition comprising the compound of formula of claim 1 with a suitable pharmaceutical carrier.
8. The compound according to claim 1 capable of treatment and/or diagnosis of:
a) viral infections;
b) acute and chronic inflammatory diseases;
c) cancer consisting of: lung cancer, cancer of the bladder, hepatic cancer, pancreatic cancer, and breast cancer;
d) degenerative muscle diseases;
e) neurodegenerative diseases; and
f) disorders which are associated with an impairment of calcium homeostasis.