Structural Elucidation of Epicatechin ( 4 → 7 ) 5,8,3'4'-tetrahydroxy-(2R,3R)-flavan-3-ol Isolated from the Bark of Korean Pine Tree ( Pinus densiflora )

Yoong Ho Lim; Yeun Joong Yong; Sung Jin Oh; Hong Keun Song

한국응용생명화학회 한국응용생명화학회지 Structural Elucidation of Epicatechin ( 4 → 7 ) 5,8,3'4'-tetrahydroxy-(2R,3R)-flavan-3-ol Isolated from the Bark of Korean Pine Tree ( Pinus densiflora )

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Structural Elucidation of Epicatechin ( 4 → 7 ) 5,8,3'4'-tetrahydroxy-(2R,3R)-flavan-3-ol Isolated from the Bark of Korean Pine Tree ( Pinus densiflora )

( Yoong Ho Lim , Yeun Joong Yong , Sung Jin Oh , Hong Keun Song )

한국응용생명화학회 1998.06

한국응용생명화학회지 vol. 41 iss. 4 265-269(5pages)

UCI I410-ECN-0102-2008-520-001466609

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Abstract

Several flavonoid dimers were isolated and elucidated from the bark of Korean pine tree (Pinus densiflora). One of them was postulated to be a compound, epicatechin (4→7) 5,8,3`,4`-tetrahydroxy-(2R,3R)-flavan-3-ol, whose structural determination was carried out by diverse NMR techniques.

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