Sterols isolated from Tubifex tubifex.
Four 3beta-hydroxysterols isolated from chloroform extract from Tubifex tubifex were shown to have the structures stigmast-23-en-3-ol, stigmast-7,14-dien-3-ol, 22-dehydrocholesterol, and 24 methylenecholesterol based on spectroscopic methods. Stigmasterol and beta-sitosterol were also investigated on the basis of mass spectral analyses and compared with known compounds.
Perez Gutierrez
Rosa Martha
RM
Laboratorio de Investigación de Productos Naturales, Escuela Superior de Ingeniería Química e Industrias extractivas IPN, Punto fijo 16, col. Torres Lindavista cp 07708, México DF, México. rmpg@prodigy.net.mx
Reyes
Ivan Cordova
IC
D000818:Animals; D002784:Cholesterol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D019906:Nuclear Magnetic Resonance, Biomolecular; D009835:Oligochaeta / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013265:Stigmasterol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification
D002784:Cholesterol; D013265:Stigmasterol