Two new cembranoids from the leaves of Croton longissimus Airy Shaw.

Susumu Kawakami, Katsuyoshi Matsunami, Hideaki Otsuka, Duangporn Lhieochaiphant, Sorasak Lhieochaiphant

Journal of natural medicines 2013 Apr

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Two new cembrane-type diterpenoids (1 and 2) along with five known compounds (3-7) were isolated from leaves of Croton longissimus collected in Thailand. Their structures were elucidated from spectroscopic evidence and compound 4 was found by HPLC analysis to be identical to oblongionoside B-a compound isolated from Croton oblongifolius-including the absolute configuration at the C-9 position.

Citation

Susumu Kawakami, Katsuyoshi Matsunami, Hideaki Otsuka, Duangporn Lhieochaiphant, Sorasak Lhieochaiphant. Two new cembranoids from the leaves of Croton longissimus Airy Shaw. Journal of natural medicines. 2013 Apr;67(2):410-4