[#2000-09] Structures of New Ceramides from the Fruit Bodies of Grifola frondosa, Yasunori Yaoita et al.

Structures of New Ceramides from the Fruit Bodies of Grifola frondosa

Yasunori YAOITA, Takaaki ISHIZUKA, Rie KAKUDA, Koichi MACHIDA, and Masao KIKUCHI*

ToKyo Pharmaceutical University, Japan.

Four new phytosphingosine-type ceramides, (25,35,4R)-2-[(2'R)-2'-hydroxydocosanoylamino1-1,3,4-octade­canetriol (1), (2S,3S,4R)-2-[(2'R)-2'-hydroxytricosanoylamino]-1,3,4-octadecanetriol (2), (2S,3S,4R)-2-[(2'R)-2'- hydroxypentacosanoylamino]-1,3,4-octadecanetriol (3) and (2S,3S,4R)-2-[(2'R)-2'-hydroxyhexacosanoylamino]- 1,3,4-octadecanetriol (4), have been isolated from the fruit bodies of Maitake ( Grifola frondosa ). The structures of the new compounds were elucidated on the basis of their spectral data.