(E)-(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-13-hydroxy-tridec-4-enoic acid methyl ester 、 (S)-2-({(S)-1-[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-pent-4-enoyl]-pyrrolidine-2-carbonyl}-amino)-3-phenyl-propionic acid 在
Grubbs catalyst first generation 哌啶 、 benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 作用下,
生成 (E)-(5S,13S,15aS)-13-Benzyl-5-(9H-fluoren-9-ylmethoxycarbonylamino)-4,12,15-trioxo-2,3,5,6,9,10,11,12,13,14,15,15a-dodecahydro-1H,4H-3a,11,14-triaza-cyclopentacyclotetradecene-10-carboxylic acid methyl ester