乙酸酐 、 (S)-2,2-Dimethyl-4-(3-{(2R,3R,4R,5S,6R)-3,4,5-trihydroxy-6-[2-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-2-yl}-propyl)-oxazolidine-3-carboxylic acid tert-butyl ester 在
吡啶 作用下,
反应 3.0h,
以97 mg的产率得到7,8,9,14,15,16,18-hepta-O-acetyl-6,10:13,17-dianhydro-2,3,4,5,11,12-hexadeoxy-1-O,2-N-isopropylidene-2-(tert-butoxycarbonylamino)-D-arabino-D-allo-L-gulo-octadecitol