2S-benzyloxycarbonylamino-3-methyl-butyric acid 5S-(3-carbamoyl-[1,2,4]triazol-1-yl)-3S,4S-bis-isobutyryloxy-tetrahydro-furan-2S-ylmethyl ester 、
对甲苯磺酸 在
palladium 10% on activated carbon
氢气 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以33%的产率得到2S-amino-3-methyl-butyric acid 5S-(3-carbamoyl-[1,2,4]triazol-1-yl)-3S,4S-bis-isobutyryloxy-tetrahydrofuran-2S-yl methyl ester; compound with toluene-4-sulfonic acid