Monoterpene indole alkaloids from the aerial parts of Ophiorrhiza brevidentata and their immunological activities
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Phytochemical study of the EtOAc extract of Ophiorrhiza brevidentata resulted in the discovery of 10 new monoterpene indole alkaloids (1-10), along with 13 known compounds (11 - 23). Compound 1 possess an unprecedented skeleton consisting of fused 6/5/6/7/6 po... ...