541 Purines 



Cordyceps militaris (Linn.) Link 



K. G. Cunningham, S. A. Hutchinson, William Manson and 

 F. S. Spring, J. Chem. Soc, 2299 (1951). 



H. R. Bentley, K. G. Cunningham and F. S. Spring, ibid., 

 2301 (1951). (Structure) 



1033 Adenosine, CioHi^O^N^, needles, m.p. 229°, [aW -60 to -63° 

 (in water). 



HOCH2 ^ 



OH OH 



Agaricus nehularis 



Nils Lofgren, Bjorn Liining and Harry Hedstrom, Acta 

 Chem. Scand. 8 670 (1954). 



1034 Guanosine, C10H13O5N5, colorless crystals, m.p. 237° (dec), 

 [alD'" -60° (in 0.1 N sodium hydroxide). 



H:N 



HOCH, Q 



OH OH 



Yeast 



Hellmut Bredereck, Annelise Martini and Friedrich Richter, 

 Ber. 74B 694 (1941). 



