Patent ID: 6624163
Filing Date: 2003-09-23
Classification: A61P,C07D

Abstract:
A compound of the formula I whereinR1 is hydrogen or lower alkyl; R2 is lower alkyl, â€”(CH2)nâ€”O-lower alkyl, â€”C3-6-cycloalkyl or â€”(CH2)nâ€”NRâ€²Râ€³; Râ€² and Râ€³ are each independently hydrogen, lower alkyl or â€”(CH2)nâ€”O-lower alkyl, or Râ€² and Râ€³ may form together with the N atom a pyrrolidine ring; n is 1, 2 or 3; and pharmaceutically acceptable acid addition salts thereof.