methyl (4S,4'R)-2'-((S)-1-((3S,4S,5S,6S,7S,8R)-5,7-bis((tert-butyldimethylsilyl)oxy)-3-methoxy-4,6,8-trimethylundecanamido)-2-hydroxyethyl)-4,4'-dimethyl-4,4',5,5'-tetrahydro-[2,4'-bithiazole]-4-carboxylate 在
二乙胺基三氟化硫 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以91%的产率得到methyl (4S,4'R)-2'-((S)-2-((2S,3S,4S,5S,6S,7R)-4,6-bis((tert-butyldimethylsilyl)oxy)-2-methoxy-3,5,7-trimethyldecyl)-4,5-dihydrooxazol-4-yl)-4,4'-dimethyl-4,4',5,5'-tetrahydro-[2,4'-bithiazole]-4-carboxylate