作者:A.G. González、B.M. Fraga、M.G. Hernández、J.G. Luis
DOI:10.1016/0040-4020(73)80009-2
日期:1973.1
The two new diterpenes, vierol (1) [(−)kaurane-16α,18-diol] and powerol (3) [(−)kaurane-7β,16α-diol] have been isolated from Sideritis canariensis Ait. 1 was obtained by partial synthesis from epicandicandiol (7), and 3 was related with (−)kauranol (6) and (−)kauren-7β-ol acetate (11). Reduction of the acetoxy-aldehyde 14 by the method of Huang-Minlon and posterior acetylation gave 11, (−)isokauren-7β-ol
两种新的二萜,vierol(1)[(-)kaurane-16α,18-diol]和powerol(3)[(-)kaurane-7β,16α-diol]已从加拿大Sideritis canariensis Ait中分离出来。1是由表二十二糖(7)通过部分合成获得的,3与(-)kauranol(6)和(-)kauren-7β-ol乙酸酯(11)有关。通过Huang-Minlon的方法还原乙酰氧基醛14并进行后乙酰化,得到11,(-)异kauren-7β-醇乙酸酯(17)和(-)kauran-7β-醇乙酸酯(18)。