methyl N-[4-(3-butenyl)-1,3-thiazol-2-lyl]-L-valyl-(4R)-4-{[(4-ethenyl-1,3-dihydro-2H-isoindol-2-yl)carbonyl]oxy}-L-prolinate 在
1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene[2-(i-propoxy)-5-(N,N-dimethylaminosulfonyl)phenyl]methyleneruthenium(II) dichloride 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 2.0h,
以57 mg的产率得到methyl (1R,12E,21S,24S)-21-isopropyl-3,22-dioxo-2-oxa-18-thia-4,20,23,27-tetraazapentacyclo[21.2.1.1(4,7).1(16,19).0(6,11)]octacosa-6,8,10,12,16,19(27)-hexaene-24-carboxylate