Pfizer Handbook of Microbial Metabolites 452 



Pseudomonas aeruginosa 



Rokuro Takeda, J. Am. Chem. Soc. 80 4749 (1958). (Struc- 

 ture) 



918 Netropsin (Congocidine, Sinanomycin, T1384), CigHoeOgNio, 

 the hydrochloride crystallizes as colorless, hygroscopic 

 prisms, m.p. 168-172° (dec). 



NH NH 



II II 



H2N— C— CH2— C— NH 



u 



o 



\ll 



I C— NH 

 CH3 



O 



o o 



\ll II 



I C— NH— CH2— CH2— C— NH2 

 CH3 



Streptomyces netropsis, S. chromogenes n.sp., S. ambo- 

 faciens n. sp. 



A. C. Finlay, F. A. Hochstein, B. A. Sobin and F. X. Murphy, 

 J. Am. Chem. Soc. 73 341 (1951). 



E. E. van Tamelen and A. D. G. Powell, Chem.. and Ind., 365 

 (1957). (Structure) 



919 Prodigiosin, C20H25ON3, red crystals with a green reflex, m.p. 

 151.5-152.9° (dec). 

 Alternative structures : * 



(CH2)4— CH3 



(CH2)4— CH3 



* See addendum. 



