[((S)-3-tert-Butoxycarbonylamino-hex-5-enoyl)-(2-methyl-allyl)-amino]-acetic acid ethyl ester 在
Grubbs' type catalyst bearing a heterocyclic carbene ligand 作用下,
以
1,2-二氯乙烷 为溶剂,
以82%的产率得到((Z)-(S)-4-tert-Butoxycarbonylamino-7-methyl-2-oxo-3,4,5,8-tetrahydro-2H-azocin-1-yl)-acetic acid ethyl ester