Phytochemistry p. 337 - 342 (1991)
Update date:2022-08-06
Topics:
Balde, A. M.
Pieters, L. A.
Gergely, A.
Kolodziej, H.
Claeys, M.
Vlietinck, A. J.
In a chemical investigation on the stem-bark of Pavetta owariensis, a new proanthocyanidin A-type, ent-epicatechin (4α->8,2α->O->7)-ent-catechin, designated as pavetannin A1, was isolated as second representative of a (2α,4α) A-type proanthocyanidin.Additionally, the occurrence of (+)-catechin, (-)-epicatechin, ent-epicatechin, proanthocyanidin A-2 and proanthocyanidin A-4 was demonstrated, the latter being reported from a natural source for the second time.
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