Zhou L, Tuo Y, Hao Y, Guo X, Tang W, Xue Y, Zeng J, Zhou Y, Xiang M, Zuo J, Yao G, Zhang Y. Cinnamomols A and B, Immunostimulative Diterpenoids with a New Carbon Skeleton from the Leaves of Cinnamomum cassia.
Org Lett 2017;
19:3029-3032. [PMID:
28535060 DOI:
10.1021/acs.orglett.7b01323]
[Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two diterpenoids with an unprecedented diterpene carbon skeleton, cinnamomols A (1) and B (2), were isolated from the leaves of Cinnamomum cassia. 1 and 2 feature a cage-like, rigid, 5/5/5/5/5/6-fused hexacyclic ring system. The structures of 1 and 2 were established by extensive spectroscopic techniques and single-crystal X-ray diffraction, and their plausible biosynthetic pathways were proposed. 1 and 2 exhibited significant in vitro immunostimulative activity, and the mode of action of 1 was investigated.
Collapse