Pfizer Handbook of Microbial Metabolites 1 1 6 



219 Corticrocin, C14H14O4, orange-red, amorphous powder or yellow 

 needles and prisms, m.p. subl. 270°, m. 317° (sealed 

 tube), U.V. 374, 393, 416 m^a in ethanol. 



Corticeum croceumBies. (= Corticium sulfureum (Fr. ) 

 Fr.) 



Yields of about 4% of the mycorrhizal weight have 

 been reported. 



Holger Erdtman, Acta Chem. Scand. 2 209 (1948). 

 (Isolation and Structure) 



B. L. Shaw and M. C. Whiting, J. Chem. Soc, 3217 (1954). 

 (Synthesis) 



B. C. L. Weedon, ibid. 4168 (1954). (Synthesis) 



220 Nemotinic Acid Xyloside, CjsHisO^, [a],."' +237° (c 0.1 ethanol). 

 HC=C— C^C— CH=C=CH— CH— CHo— CHo— COOH 



/ o^ 



OH >HO 



HO 



OH 



Basidiomycete B-841 



J. D. Bu'Lock and H. Gregory, Experientia 15 420 (1959). 



22 1 Deca-trans-2-trarzs-8-diene-4,6-diynyl Deca-trans-2, trans-8-diene- 

 4,6-diynoate, CooHigOo, colorless crystals, m.p. 124-126°, 

 U.V. 213 (233"), 238.5, 246, 259, 277.5, 295, 314, 335 

 mfx in ethanol. 



CH3— CH=CH— C=C— C^C— CH=CH— COO— CH2— CH=CH— C=C— C^C— 



CH=CH— CH3 



Polyporus anthracophilus 



J. D. Bu'Lock, E. R. H. Jones and W. B. Turner, J. Chem. 

 Soc, 1607 (1957). 



