New labdane diterpenoids from Hyptis fasciculata |
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| Authors: | Ohsaki Ayumi Kishimoto Yoshiko Isobe Takahiko Fukuyama Yoshiyasu |
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| Institution: | Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Japan. fukuyama@ph.bunri-u.ac.jp |
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| Abstract: | Two new labdane diterpenoids, 15beta-methoxyfaciculatin (1) and 15alpha-methoxyfaciculatin B (2), together with the previously known methoxynepetaefolin (3), were isolated from a methanol extract of the dried aerial parts of a Brazilian medicinal plant, Hyptis faciculata. Their structures were elucidated by analysis of spectroscopic data. Plausible biogenetic correlation between faciculatins and nepetaefolin is briefly discussed. |
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