Three New Abietane-type Diterpenes from the Bark of Cryptomeria japonica

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• 作者：Chi-I Chang ; Chien-Chih Chen ; Sheng-Yang Wang ; Che-Yi Chao ; Louis Kuoping Chao ; Jih-Jung Chen ; Horng-Huey Ko ; Cheng-Chi Chen and Yueh-Hsiung Kuo
• 刊名：Helvetica Chimica Acta
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：99
• 期：9
• 页码：710-715
• 全文大小：94K
• ISSN：1522-2675

文摘

Three new abietane-type diterpenoids, 7β-acetoxy-12-methoxyabieta-8,11,13-triene-6α,11-diol (1), 7α-acetoxy-12-methoxyabieta-8,11,13-triene-6α,11-diol (2), and 6α-acetoxy-12-methoxyabieta-8,11,13-triene-7α,11-diol (3), as well as two known abietane-type diterpenoids, 12-methoxyabieta-8,11,13-triene-6α,7β,11-triol (4) and 6α-acetoxy-12-methoxyabieta-8,11,13-triene-7β,11-diol (5), were isolated from the MeOH extract of the bark of Cryptomeria japonica. Their structures were determined by analysis of spectroscopic data and comparison of NMR data with those of related metabolites.