Patent ID: 6864233

Claim:
A compound of the formula: wherein R 1 is selected from the group consisting of hydrogen, hydroxyl, Ob b is selected from the group consisting of alkyl, alkenyl and alkynyl of up to 12 carbon atoms, optionally substituted by halogen; b′ and b″ are individually selected from the group consisting of hydrogen, alkyl of up to 12 carbon atoms and unsubstituted or substituted aryl; c and d are selected from the group consisting of hydrogen, alkyl and cycloalkyl of up to 8 carbon atoms, optionally interrupted by an oxygen atom and unsubstituted or substituted by a member selected from the group consisting of halogen, OH and c 1 and d 1 are hydrogen or alkyl of up to 8 carbon atoms or c 1 and d 1 form with the nitrogen atom a heterocycle optionally containing at least one heteroatom, A is selected from the group consisting of oxygen, —CH 2 — and NH, B is a steroid linked at position 3, R 3 is selected from the group consisting of hydrogen, methyl and hydroxyl, R 4 is hydrogen or hydroxyl, T is selected from the group consisting of hydrogen, methyl, —CH 2 —CONH 2 ), —CH 2 ≡N, —(CH 2 ) 2 NH 2 and —(CH 2 ) 2 Alk + X, X is halogen and Alk is an alkyl of up to 8 carbon atoms, Y is selected from the group consisting of hydrogen, hydroxyl, halogen and —OSO 2 H or a salt thereof, W is hydrogen or —OH, Z is hydrogen or methyl and its pharmaceutically acceptable acid addition salts.