CAS: 19083-00-2; (2S,3R,4S,5S,6R)-2-(((2R,3R,4S,5R,6R)-3-Hydroxy-2-(Hydroxymethyl)-6-(((2'R,4S,5'R,6Ar,6Bs,8As,8Br,9S,11As,12As,12Bs)-5',6A,8A,9-Tetramethyl-1,3,3',4,4',5,5',6,6A,6B,6',7,8,8A,8B,9,11A,12,12A,12B-Icosahydrospiro[naphtho[2',1':4,5]Indeno[2,1-B]Furan-10,2'-P

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diosgenyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1-2)-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1-3)-4,6-O-benzylidene-β-D-glucopyranoside 2,3,4,6-tetra-O-benzoylglucosyl bromide 2)-4,6-O-benzylidene-β-D-glucopyranosidediosgenyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1-2)-4,6-O-benzylidene-β-D-glucopyranoside diosgenyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1-2)-4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-β-D-glucopyranosideD-Glucose L-rhamnose

Diosgenyl 2,3,4-Tri-O-Benzoyl-α-L-Rhamnopyranosyl-(1->2)-[2,3,4,6-Tetra-O-Acetyl-β-D-Glucopyranosyl-(1->3)]-4,6-O-Benzylidene-β-D-Glucopyranoside置于溶剂黄146,Sodium Methylate体系中,用 甲醇,二氯甲烷 用作溶剂,化学反应 2.0H,以81%的收率获得纤细薯蓣皂苷
参考文献:The Synthesis Of Gracillin And Dioscin: Two Typical Representatives Of Spirostanol Glycosides
标题:The Synthesis Of Gracillin And Dioscin: Two Typical Representatives Of Spirostanol Glycosides
摘要:Two Representative Spirostanol Saponins That Have The Typical Structure For The Sugar Moiety,Diosgenyl Alpha-L-Rhamnopyranosyl-(1--> 2)-[beta-D-Glucopyranosyl-(1--> 3)]-Beta-D-Glucopyranoside (Gracillin) And Diosgenyl Alpha-L-Rhamnopyranosyl-(1--> 2)-[alpha-L-Rhamnopyranosyl-(1--> 4)]-Beta-D-Glucopyranoside (Dioscin),Were Easily Synthesized By A General Approach. A Procedure Using Guanidine For The Selective Deblocking Of Acetyl While Retaining Benzoyl Protecting Groups Is Described. (C) 2003 Elsevier Science Ltd. All Rights Reserved.
Doi:10.1016/s0008-6215(03)00004-1