Pfizer Handbook of Microbial Metabolites 



172 



Polyporus pinicola Fr. 



The corresponding 3-ketone was isolated from the same 

 specimen as well as a mixture of fungisterol and ergosta- 

 7,22-diene-3-one. 



T. G. Halsall and G. C. Sayer, /. Chem. Soc, 2031 (1959). 



349 3/3-Hydroxylanosta-8,24-diene-21-oic Acid (Trametenolic Acid 

 B), C30H48O3, colorless needles, m.p. 253-258°, [aU +43° 



(c 0.94 in pyridine). 



HOOC 



Trametes odorata (Wulf. ) Fr. 



Three other acids were isolated as their methyl esters 

 from the same specimen: Ester A; m.p. 159-165°, [ci:]d 

 +49°. Ester B, m.p. 152°, [ajn +66° and Ester C, m.p. 

 197-199°. 



T. G. Halsall, R. Hodges and G. C. Sayer, J. Chem. Soc, 

 2036 (1959). 



T. G. Halsall and E. R. H. Jones, Fortschr. Chem. org. 

 Naturst. 12 95 (1955). (A review) 



350 3a-Oxylanosta-8,24-diene-21-oic Acid, C30H4SO3, isolated as the 

 methyl ester-acetate. 



HOOC 



Polyporus pinicola Fr. 



J. J. Beereboom, H. Fazakerley and T. G. Halsall, J. Chem. 

 Soc, 3437 (1957). 



