Juvabione analogs from Abies sachalinensis (Fr. Schm.) Mast. II.
作者:Atsushi NUMATA、Kenzo KAWAI、Chika TAKAHASHI
DOI:10.1248/cpb.38.2570
日期:——
Two new juvabione analogs (4 and 5) were isolated, together with (+)-epijuvabione and (+)-dehydroepijuvabione, from the wood of Abies sachalinensis (FR. SCHM.) MAST. (Pinaceae) grown in the southern base of the Taisetsu mountain range of Hokkaido, Japan. The structures of 4 and 5 were respectively established to be methyl 4(S)-[1(S), 5-dimethyl-3-oxohexyl]-3-oxo-1-cyclohexene-1-carboxylate and methyl 4(R)-[1(S), 5-dimethyl-3-oxohexyl]-3-oxo-1-cyclohexene-1-carboxylate on the basis of chemical and spectral evidence. Juvabione-type compounds had been isolated from the wood of this species, whereas this time the epijuvabione-type compounds alone were obtained. This evidence suggests the existence of a tree-to-tree variation in constituents of the A. sachalinensis wood.
从生长在日本北海道大雪山南麓的松柏(Abies sachalinensis (FR. SCHM.) MAST.)木材中分离出了两种新的 Juvabione 类似物(4 和 5)以及 (+)-epijuvabione 和 (+)-dehydroepijuvabione。(松科)木材中提取的。根据化学和光谱证据,确定 4 和 5 的结构分别为 4(S)-[1(S), 5-二甲基-3-氧代己基]-3-氧代-1-环己烯-1-羧酸甲酯和 4(R)-[1(S), 5-二甲基-3-氧代己基]-3-氧代-1-环己烯-1-羧酸甲酯。以前曾从该树种的木材中分离出 Juvabione 类化合物,而这次只得到了 epijuvabione 类化合物。这些证据表明 A. sachalinensis 木材的成分存在树与树之间的差异。