HCID 6452452, compound → HCID 70059967, compound

Participants

Reaction Steps

A solution of the product from Example Z (2(S)-[(azepane-1-carbonyl)-amino]-4-methyl-pentanoic acid) (0.20 g, 0.78 mmol) and 2(S)-amino-3-(4-tert-butoxy-phenyl)-propionic acid methyl ester (Bachem, 0.247 g, 0.86 mmol) were coupled according to the procedure described in Example 42. The residue was passed through a plug of silica gel eluting with 70% ethyl acetate/hexane. The material obtained was purified by crystallization from hot hexane/ethyl acetate to give the title compound as a white solid (0.31 g, 81%), mp=96-99° C.

Provenance & Evidence