Patent ID: 7550622

Claim:
A process comprising: a) alkylating a cyanoester of Formula (Ia) with a base and an organic acid to make a cycloalkylcyanoester of Formula (Ib) b) performing base hydrolysis on the cycloalkyl cyanoester with a suitable base to make a cycloalkylamidoacid compound of Formula (1c); wherein R 1 is 1 -C 4 alkyl, or H; and X=C 1-2 alkylene, optionally partially or fully halogenated; and c) treating the cycloalkylamidoacid compound of Formula (1c) with an N-brominating agent, an organic base and ROH, to make a cycloalkyl aminoester via an oxazolidinedione, as follows: wherein R=C 1-10 alkyl, optionally partially or fully halogenated and optionally substituted with one or more of OH, NH 2 ,C 1-6 , SO 2 ; phenyl, or CF 3 .