1-thio-2-N-acetylamino-3,4,6-tri-O-acetyl-1,2-dideoxy-α-D-galactopyranose 、
Boc-Phe-Azy-Ala-OBn 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
氯仿 为溶剂,
反应 19.0h,
生成 (S)-2-[(R)-2-((S)-2-tert-Butoxycarbonylamino-3-phenyl-propionylamino)-3-((2R,3R,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-3-acetylamino-tetrahydro-pyran-2-ylsulfanyl)-propionylamino]-propionic acid benzyl ester 、 (S)-2-[(R)-3-((S)-2-tert-Butoxycarbonylamino-3-phenyl-propionylamino)-2-((2R,3R,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-3-acetylamino-tetrahydro-pyran-2-ylsulfanyl)-propionylamino]-propionic acid benzyl ester