Tyromycic acids B-E, new lanostane triterpenoids from the mushroom Tyromyces fissilis.
Four new triterpenoids, tyromycic acids B-E (1-4), were isolated from a methanol-soluble extract of the fruit bodies of the Japanese inedible mushroom Tyromyces fissilis. Tyromycic acids B-D possess a lanostane skeleton, while tyromycic acid E is based on a rare 14(13-->12)abeo-lanostane skeleton. Their structures were determined by spectral data analysis and by single-crystal X-ray crystallography.
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan. asakawa@ph.bunri-u.ac.jp
Dang Ngoc
DN
Quang
Toshihiro
T
Hashimoto
Masami
M
Tanaka
Shigeru
S
Takaoka
Yoshinori
Y
Asakawa
D000363:Agaricales / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007564:Japan; D008968:Molecular Conformation; D015394:Molecular Structure; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D013256:Steroids; D014315:Triterpenes