24-norhopene derivatives from Diatenopteryx sorbifolia
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Published on: March 23, 2022
J P Chávez1, J M David, S W Yang
1Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago 60612, USA.
Abstract:
Two new hopene derivatives, 3 beta,6 beta-dihydroxy-21 alpha H-24-norhopa-4(23),22(29)-diene (1) and 3 beta,5 beta-dihydroxy-6 beta-[(4-hydroxybenzoyl)oxy]-21 alpha H-24-norhopa-4(23),22(29)-diene (2), together with cleomiscosin B (3) and 5,6-dimethoxy-7-hydroxycoumarin (umckalin), were isolated from the timber of Diatenopteryx sorbifolia. This is the first isolation of the norhopene skeleton from nature. The structures of the isolates were established by spectroscopic analysis.
