deamino-Gly(allyl)-Tyr(tBu)-Val-Asn(Trt)-Val-Gly(allyl)-OMe 在
tri(cycloxexyl)phosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene][benzylidene]ruthenium(IV) dichloride
2,6-二氯甲苯 作用下,
以
1,1,2-三氯乙烷 为溶剂,
反应 16.0h,
以45%的产率得到(Z)-(2S,5S,8S,11S,14S)-2-(4-tert-Butoxy-benzyl)-5,11-diisopropyl-3,6,9,12,20-pentaoxo-8-[(trityl-carbamoyl)-methyl]-1,4,7,10,13-pentaaza-cycloicos-16-ene-14-carboxylic acid methyl ester