Patent ID: 6777564
Filing Date: 2004-08-17
Classification: A61K,C07C,C09B

Abstract:
A compound of the following formula (I): wherein:R1, R2 and R3 each independently is hydrogen, hydroxyl, amino or C1-6 alkyl group; R4 is hydrogen, C1-18 alkyl carbonyl, C1-6 alkyl group substituted by at least a functional group, said functional group is selected from the group consisting of hydroxyl, amino, carbado, carbazoyl, formyl, carbamyl, carboxyl, carbonyl, or a group of the following formula wherein X is fluoro, chloro, bromo, lodo, a group of the following formula wherein n is 1, 2, or 3, R6 is hydrogen or arylalkyl, or a group of the following formula wherein l is 1, 2, or 3, m is 0 or 1, n and R6 is defined as the above; R5 is hydrogen amino or a group of the following formula wherein R1, R2, R3 and R4 are defined as the above; and R and Râ€² each independently is hydrogen, hydroxyl, amino, C1-6 alkyl group or a group of the following formula wherein R1, R2, R3 and R4 are defined as the above.