Five new compounds from the heartwood of Juniperus formosana Hayata.
作者:Yueh-Hsiung KUO、Tseng-Rong WU、Ming-Chu CHENG、Yu WANG
DOI:10.1248/cpb.38.3195
日期:——
Extracts of the heatwood of Juniperus formosana HAYATA were found to contain the known constituents β-sitosterol, α-cedrol, 4-ketocedrol, 3βhydroxycedrol, isocedrolic acid, δ-cadinol, cadin-8-en-10-ol, clovandiol, sugiol, Δ5-dehydrosugiol, totarol, 7-oxototarol, cryptojaponol, emodin, and methyl α-conidendral, together with five new compounds, 7α-methoxydeoxocryptojaponol, suginal, detetrahydroconidendrin, formosanol, and junipediol. In addition, 7β-hydroxydeoxocryptojaponol was obtained (first isolation as a natural product). Junipediol has a novel sesquiterpene skeleton which was elucidated by X-ray analysis.
研究发现,八叶杜松的热木提取物中含有已知成分 β-谷甾醇、α-柏木醇、4-酮柏木醇、3β-羟基柏木醇、异柏木酸、δ-卡地诺醇、卡地宁-8-烯-10-醇、氯凡二醇、杉醇、Δ5-脱氢杉二醇、土他洛尔、7-氧代土他洛尔、隐酮皂苷、大黄素和甲基 α-conidendral,以及五种新化合物:7α-甲氧基脱氧隐酮皂苷、苏木精、去四氢conidendrin、福莫桑醇和桧二醇。此外,还获得了 7β-hydroxydeoxocryptojaponol (首次分离出天然产物)。通过 X 射线分析,阐明了 Junipediol 的新型倍半萜骨架。