Studies on the Constituents of Juglans Species. I. Structural Determination of (4S)- and (4R)-4-Hydroxy-.ALPHA.-tetralone Derivatives from the Fruit of Juglans mandshurica MAXIM. var. sieboldiana MAKINO
作者:Koichi Machida、Erika Matsuoka、Takayuki Kasahara、Masao Kikuchi
DOI:10.1248/cpb.53.934
日期:——
Four enantiomerically pure new α-tetralones, (4S)- and (4R)-5-hydroxy-4-methoxy-α-tetralones and (4S)- and (4R)-5,8-dihydroxy-4-methoxy-α-tetralones were isolated, together with five known ones, (4S)- and (4R)-4,8-dihydroxy-α-tetralones, (4S)-4,8-dihydroxy-5-methoxy-α-tetralone and (4S)- and (4R)-4-hydroxy-α-tetralones, from the fruit of Juglans mandshurica MAXIM. var. sieboldiana MAKINO. Their structures were established on the basis of spectral analysis. To the best of our knowledge, this is the first isolation of the (4R)-4-hydroxy-α-tetralone derivative from Juglans species.
从胡桃(Juglans mandshurica MAXIM. var. sieboldiana MAKINO)果实中分离出四种对映体纯的α-四氢萘酮新化合物(4S)-和(4R)-5-羟基-4-甲氧基-α-四氢萘酮以及(4S)-和(4R)-5,8-二羟基-4-甲氧基-α-四氢萘酮,以及五种已知化合物(4S)-和(4R)-4,8-二羟基-α-四氢萘酮、(4S)-4,8-二羟基-5-甲氧基-α-四氢萘酮以及(4S)-和(4R)-4-羟基-α-四氢萘酮。它们的结构是根据光谱分析确定的。据我们所知,这是首次从胡桃属物种中分离出(4R)-4-羟基-α-四氢萘酮衍生物。