中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
甲基牛蒡酚; 甲基牛蒡子素 | dimethylmatairesinol | 25488-59-9 | C22H26O6 | 386.445 |
—— | (+/-)-dimethylmatairesinol | —— | C22H26O6 | 386.445 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (2R)-(8β,8'α)-9,9'-epoxy-4,5,4',5'-tetramethoxy-2,2'-cyclolignane | 119030-68-1 | C22H26O5 | 370.445 |
—— | (8α,8'β)-4,5,4',5'-tetramethoxy-2,2'-cyclolignane-9,9'-diol | 119099-00-2 | C22H28O6 | 388.461 |
—— | 2-[(9R,10R)-10-(hydroxymethyl)-4,5,14,15-tetramethoxy-9-tricyclo[10.4.0.02,7]hexadeca-1(16),2,4,6,12,14-hexaenyl]propan-2-ol | 1528629-90-4 | C24H32O6 | 416.514 |
Oxidative coupling of dimethylmatairesinol with thallium tristrifluoroacetate (prepared in situ from thallium(III) oxide and trifluoroacetic acid) and boron trifluoride etherate gives a high yield of an isostegane which has been isomerized thermally to a stegane. Stereochemical assignments have been confirmed by X-ray diffraction studies.