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Abstract

The leaves and woody stems of Casearia grayi (Flacourtiaceae/Salicaceae) have yielded several known flavone glycosides and a number of clerodane and halimane diterpenes, which were characterized mainly by analysis of NMR spectra. New compounds were identified as (rel)-2(R)-hydroxy-18(S),19(R)-diacetoxy-18,19-epoxy-4(S),5(S),8(S),9(S),10(R)-clerodan-13(16),14-dien-6-one (1), (rel)-2(R),18(S),19(R)-triacetoxy-18,19-epoxy-4(S),5(S),8(S),9(S),10(R)-clerodan-13(16),14-dien-6-one (4), (rel)-2(R)-hydroxy-18(S),19(R)-diacetoxy-18,19-epoxy-4(S),5(S),8(S),9(S),10(R)-clerodan-12(E),14-dien-6-one (7), (rel)-18(S),19(R)-diacetoxy-18,19-epoxy-2(R)-hydroxy-4(S),5(R),8(S),9(S),10(R)-clerodan-12(E),14-diene (8), and 16-hydroxy-halima-5(10),13(E)-dien-15-oic acid (9).

Keywords

Casearia grayi Flacourtiaceae Salicaceae clerodane diterpenes halimane diterpenes

References

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New Clerodane and Halimane Diterpenes from the Leaves and Woody Stems of Casearia grayi (Flacourtiaceae/Salicaceae)

Abstract

Keywords

References

Supplementary Material