[Studies on the chemical constituents of the bark of Betula platyphylla].
The paper deals with the saperating of free phenolic hydroxyl dipolymer condensution-tannis B1, B2 and the compounds (+)-catechin, (-)-epicatechin from the bark of Betula platyphylla. Their structures have been evaluated by means of 1H, 13C-NMR technique and chemical ways.
Li
J
J
Jiamusi Medical College, Heilongjiang 154003.
Wang
X
X
Zhou
S
S
D029662:Betula / Q000737:chemistry*; D002392:Catechin / Q000031:analogs & derivatives / Q000302:isolation & purification*; D024301:Plant Bark / Q000737:chemistry*; D013057:Spectrum Analysis / Q000379:methods
D002392:Catechin