Acetic acid (2R,3R,4S,5R,6R)-3-acetoxy-6-acetoxymethyl-2-((S)-2-amino-propionylamino)-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester 、
在
碳酸氢钠 作用下,
以
四氢呋喃 为溶剂,
以13.6 mg的产率得到[(2R,3R,4S,5R,6R)-4,5-diacetyloxy-6-[[(2S)-2-[2-[2-[2-[2-[[12,19-bis[2-[2-[2-[2-[[(2S)-1-[[(2R,3R,4S,5R,6R)-3,4-diacetyloxy-6-(acetyloxymethyl)-5-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]amino]-1-oxopropan-2-yl]carbamoyloxy]ethoxy]ethoxy]ethoxy]ethoxy]-6,13,20-trimethoxy-5-tetracyclo[15.4.0.03,8.010,15]henicosa-1(21),3,5,7,10,12,14,17,19-nonaenyl]oxy]ethoxy]ethoxy]ethoxy]ethoxycarbonylamino]propanoyl]amino]-3-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]methyl acetate