Patent ID: 6100238
Filing Date: 2000-08-08
Classification: A61K,C07D,C07K

Abstract:
A compound of the formula ##STR2## wherein X and Y are independently O or N;R.sub.1 is alkyl;R.sub.2 and R.sub.3 are independently H or alkyl; or together form a cycloalkyl ring consisting of 3-5 carbons optionally substituted with one or more heteroatoms selected from O, S or N wherein N is optionally substituted with H or alkyl;n is 0 or 1;D is a direct bond or valine;A is --C(O)-- or --OC(O)--; andR.sub.4 is alkyl or aryl substituted with one or two N atoms; ora pharmaceutically acceptable salt thereof.