abstract |
The present invention provides a process for making a compound of general formula I: n nwherein:n R=H or C 1-8 alkyl X=C 3 -C 8 cycloalkyl, C 3 -C 8 aryl or C 3 -C 8 alkyl; Y=heteroaryl or aryl; Z=H, HO 2 Cā, C 1-8 alkyl O 2 Cā, C 1-6 alkyl HNC(O)ā, n nand as described herein. |