Patent ID: 6559315
Filing Date: 2003-05-06
Classification: A61K,A61P,C07D

Abstract:
A compound of the formula: wherein:Z is CH or N; R is H or acyl; R1, R2, R3 and R5 may be the same or different and represent H, alkyl or hydrocarbyl arylalkyl having up to 14 carbons atoms; R4 is H or alkyl having 1-4 carbon atoms; and optical antipodes and mixtures thereof, diastereomers, racemates and salts thereof with a pharmaceutically acceptable acid or a pharmaceutically acceptable complex thereof, with the proviso that:R4 is alkyl having 1-4 carbon atoms, when Z is CH; R, R1, R2, R3 and R5 are each H; and R4O is attached to the carbon atom labelled 4; and that R5 is H, when Z is CH; R, R1, R2, R3 and R4 are each H; and R4O is attached to the carbon atom labelled 3.