TRITERPENIC ALCOHOLS OF CALENDULA OFFICINALIS L FLOWERS

A number of alcohols representing different types of pentacyclic triterpenes were identified in the flowers of Calendula officinalis. In the group of monohydroxyalcohols were identified: α-amyrin, β-amyrin, taraxasterol and lupeol in addition to previously isolated ψ-taraxasterol. In the group of dihydroxyalcohols: brein and calenduladiol (a new diol of lupeol type) in addition to the previously isolated arnidiol and faradiol. The presence of four other diols of the α-amyrin, β-armyrin and ψ-taraxasterol types was noticed. Alcohols of ψ-taraxasterol type, possessing three and four hydroxyl groups, were also isolated as well as a small amount of oleanolic aldehyde. © 1970.