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Structurally diverse diterpenoids from the seeds of Caesalpinia minax Hance and their bioactivities. | LitMetric

Structurally diverse diterpenoids from the seeds of Caesalpinia minax Hance and their bioactivities.

Phytochemistry

Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650504, China. Electronic address:

Published: September 2024

AI Article Synopsis

Article Abstract

Eight previously undescribed diterpenoids, caesamins A-H (1-8), were separated and identified from the seeds of Caesalpinia minax Hance. Their structures were characterized by extensive spectroscopic data and X-ray crystallographic analysis. Structurally, caesamin A (1) is the first cassane-type diterpenoid with a C23 carbon skeleton containing an unusual isopropyl. Caesamin F (6) represents the first example of cleistanthane diterpenoid from the genus Caesalpinia. Caesamins B (2) and F (6) exhibited inhibitory activity against LPS-induced nitric oxide production in RAW 264.7 macrophages with IC values of 45.67 ± 0.92 and 42.99 ± 0.24 μM, comparable to positive control 43.69 ± 2.62 μM of NG-Monomethyl-L-arginine. Furthermore, the chemotaxonomic significance of the isolates was discussed.

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Source
http://dx.doi.org/10.1016/j.phytochem.2024.114189DOI Listing

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