10-(3-butylcarbamoyl-1-hydroxybutyl)-7-methyl-5,8-dioxo-1,3,4,4a,5,6,7,8,9,10,11,13,16,17a-tetradecahydro-12,17-dithia-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 0.67h,
以100%的产率得到(2R,4S)-4-[(8R,11S,13aS,17aR)-11-methyl-10,13-dioxo-2H,5H,7H,8H,9H,10H,11H,12H,13H,13aH,14H,15H,16H,17H,17aH-pyrido[4,3-i][,,,]cyclopentadecan-8-yl]-N-butyl-4-hydroxy-2-methylbutanamide