Pfizer Handbook of Microbial Metabolites 



132 



A streptomycete 



Carl Djerassi and John A. Zderic, J. Am. Chem. Soc. 78 

 2907 (1956). (Structure) 



Milton N. Donin, Joseph Pagano, James D. Dutcher and 

 Clara M. McKee, "Antibiotics Annual 1953-1954," Medical 

 Encyclopedia, Inc., New York, p. 179. (Isolation) 



262 Neomethymycin, Co,-,H4..07N, colorless crystals, m.p. 156°, [aln^^ 

 +93° (in chloroform). 



XH3 



-P. 



OH N— CH3 



CH3 

 CH3 



CH3 

 O 



CH3 



Desosamine 



OH 



CH3 CH3 



Same streptomycete which produces Methymycin 

 Carl Djerassi and O. Halpern, J. Am. Chem. Soc. 79 2022 

 (1957). (Structure) 



J. Vandeputte, unpublished. (Isolation) 



263 Picromycin, C25H4:^07N, colorless crystals, m.p. 169.5°, [alo^" 

 -33.5° (c 2.07 in chloroform). 



(D 



Picrocin 

 esosamine) 



CH3 



CH3— N 

 CH3 



CH3 



— o' 



CH3 



CHa 

 O 



OH 



/ 



HO CH3 



CH3 



Streptomyces felleus n. sp. 



Hans Brockmann and Rudolf Oster, Chem. Ber. 90 605 

 (1957). (Partial structure) 



R. Anliker and K. Gubler, Helv. Chim. Acta 40 119 (1957). 

 (Structure) 



Hans Brockmann and Willfried Henkel, Chem,. Ber. 84 284 

 (1951). (Isolation) 



Ibid., Naturwissenschaften 37 138 (1950). (Isolation) 



