三氯乙腈 、 Acetic acid (2R,3S,4S,5R,6R)-4-acetoxy-2-[(3S,4S,5R,6R)-4-acetoxy-5-((S)-2,4-diacetoxy-butyrylamino)-2-hydroxy-6-methyl-tetrahydro-pyran-3-yloxy]-5-((S)-2,4-diacetoxy-butyrylamino)-6-methyl-tetrahydro-pyran-3-yl ester 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
二氯甲烷 为溶剂,
反应 0.08h,
以85%的产率得到Acetic acid (2R,3R,4S,5S,6R)-3-((S)-2,4-diacetoxy-butyrylamino)-5-[(2R,3S,4S,5R,6R)-3,4-diacetoxy-5-((S)-2,4-diacetoxy-butyrylamino)-6-methyl-tetrahydro-pyran-2-yloxy]-2-methyl-6-(2,2,2-trichloro-acetimidoyloxy)-tetrahydro-pyran-4-yl ester