031 ArdipusillosideⅡ
中藥學(xué)

        [結(jié)構(gòu)式][主要物性]分子式C58H94O27·4H2O;分子量1294。白色粉末,熔點(diǎn)279～281℃,[α]22.5D-21.91°(c=0.79,C5H5N)。IRνKBrmaxcm-1:3380,1705,1680,1070,1040,990,890,840,820。1HNMR(C5D5N)δ:0.82～1.86(各3H,s,6×CH3),3.18(1H,m,3-H),3.19,3.54(2H,28-HA,8),3.86(1H,m,16-H),3.90～4.80(多個(gè)    （共 379 字）     [閱讀本文] >>