4-O-[2-[[2-(5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5-methylsulfanyl-1,3-dithiol-4-yl]sulfanyl]ethyl] 1-O-(2-phenylpropan-2-yl) (2S)-2-[[(2S)-4-[2-[[2-(5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5-methylsulfanyl-1,3-dithiol-4-yl]sulfanyl]ethoxy]-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-oxobutanoyl]amino]butanedioate 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以77%的产率得到(2S)-4-[2-[[2-(5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5-methylsulfanyl-1,3-dithiol-4-yl]sulfanyl]ethoxy]-2-[[(2S)-4-[2-[[2-(5,6-dihydro-[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5-methylsulfanyl-1,3-dithiol-4-yl]sulfanyl]ethoxy]-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-oxobutanoyl]amino]-4-oxobutanoic acid