Four new sterols, 5α, 6α-epoxy-(22E, 24R)-ergosta-8(14), 22-diene-3β, 7β-diol (1), (22E, 24R)-ergosta-8, 22-diene-3β, 5α, 6β, 7α-tetrol (2), (22E, 24R)-ergosta-7, 9(11), 22-triene-3β, 5α, 6β-triol (3) and 3β, 5α, 6β-trihydroxy-(22E, 24R)-ergost-22-en-7-one (4), have been isolated from the fruit bodies of Grifola frondosa (FR.) S. F. GRAY (Polyporaceae)together with fourteen known ones (5-18), of which two (5 and 6) are reported for the first time from a natural source. The structures of these compounds were elucidated on the basis of spectral data.
四种新的
甾醇,5α,6α-环氧-(22E,24R)-麦角甾-8(14)、22-二烯-3β,7β
-二醇(1)、(22E,24R)-麦角甾-8、22-二烯-3β,5α,6β,7α-四醇(2)、(22E,24R)-麦角甾-7、9(11),22-
三烯-3β,5α,6β-三醇(3)和 3β,5α,6β-三羟基-(22E,24R)-麦角甾-22-烯-7-酮(4),都是从 Grifola frondosa (FR.) S. F. GRAY (FR.)的果实体内分离出来的。) S. F. GRAY(多孔菌科)的果实中分离出了三羟基-(22E, 24R -麦角甾-22-烯-7-酮 (4),以及 14 种已知的化合物 (5-18),其中两种 (5 和 6) 是首次从天然来源中分离出来。根据光谱数据阐明了这些化合物的结构。