10-(3-butylcarbamoyl-1-hydroxybutyl)-7-methyl-5,8-dioxo-3,4,4a,5,6,7,8,9,10,11,13,16,17,17a-tetradecahydro-1H-12-thia-2,6,9-triazabenzocyclopentadecene-2-carboxylic acid tert-butyl ester 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以100%的产率得到(2R,4S)-4-[(3S,6R,13aS,17aS)-3-methyl-1,4-dioxo-1H,2H,3H,4H,5H,6H,7H,9H,12H,13H,13aH,14H,15H,16H,17H,17aH-pyrido[4,3-i][,,]cyclopentadecan-6-yl]-N-butyl-4-hydroxy-2-methylbutanamide