Dihydronyctanthic acid methyl ester and other 3,4-seco-pentacyclic triterpenoids from Hoya lacunosa
1983; Elsevier BV; Volume: 22; Issue: 12 Linguagem: Inglês
10.1016/s0031-9422(00)97702-1
ISSN1873-3700
Autores Tópico(s)Plant biochemistry and biosynthesis
ResumoFrom the wax of old leaves of Hoya lacunosa was isolated a mixture of 4(23)-saturated seco-ring-A triterpene acid methyl esters. One of these compounds was identified as the β-amyrin derivative 5-isopropyl-10(2-methoxy-carbonylethyl)-des-A-olean-12-en (dihydronyctanthic acid methyl ester), while another compound was a taraxerol derivative 5-isopropyl-10(2-methoxycarbonylethyl)-des-A-olean- 14-en. Two other constituents were probably derived from α-amyrin and taraxasterol, respectively.
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