An oxidation process for the preparation of N-[3-amino-1-(cyclobutylmethyl)-2,3- dioxopropyl]-3-{N-[(tert-buty-lamino)carbonyl]-3-methyl-L-valyl}-6,6-dimethyl-3-azabicy-clo[3.1.0]hexane-2-carboxamide and related compounds

摘要

The present application relates to a process for preparing a compound of formula I: wherein R1 is alkyl; R2 is alkyl; and R3 is optionally substituted cycloalklylalkyl which comprises oxidizing a compound of the formula wherein R1, R2 and R3 are defined above to yield a compound of formula I.