Pfizer Handbook o£ Microbial Metabolites 574 



Seizi Igarasi, Koichi Ogata and Akira Miyake, J. Antibiotics 

 (Japan) 9B 101 (1956). 



1073 Allomycin,* CogH4409, crystalline, m.p. 237-239° (dec.) [xW 



-118.8 ± 0.5° (c 0.98 in 0.1 N hydrochloric acid). 



Streptomyces sindenensis 



Koichi Nakazawa, Shigehiro Fujii, Michitaka Inoue, Hiroshi 

 Hitomi, Ohira Miyake and Jyuzo Kaneko, /. Antibiotics (Ja- 

 pan) 7B 168 (1954). 



Sueo Tatsuoka, Koichi Nakazawa, Michitaka Inoue and 

 Shigehiro Fujii, J. Pharm. Soc. Japan 75 1206 (1955). 



1074 Alternarine, colorless needles, m.p. 230°. 



Alternaria solani 



Herman Darpoux, Albert Faivre-Amiot and Louis Roux, 

 Compt. rend. 2:J0 993 (1950). 



1075 Althiomycin, Ci-Hi^NjS.O,., colorless crystals, m.p. 172-174° 



(dec.) (browning" from 120-160°), [7.W +20.3 (c 1.33 

 in methyl cellosolve). 



Unstable at pH <5.0 or >7.0. 



A streptomycete 



Hiroshi Yamaguchi, Yuya Nakayama, Keiichi Takeda, 

 Kosaku Tawara, Kenji Maeda, Tomio Takeuchi and Hamao 

 Umezawa, /. Antibiotics (Japan) lOA 195 (1957). 



1076 Anisomycin (PA-106, PA-107), Ci4Hi,,04N, white needles, m.p. 



140°, [a]D'' -45° ± 3° (c 1.0 in chloroform). 



Streptomyces griseolus, other Streptomyces spp. 



Ben A. Sobin and Fred W. Tanner, Jr., J. Am. Chem. Soc. 76 

 4053 (1954). 



Fred W. Tanner, Jr., B. A. Sobin and J. F. Gardocki, "Anti- 

 biotics Annual 1954-1955" Medical Encyclopedia, Inc., New 

 York, p. 809. 



1077 Antibiotic A 246,t C4]H,;6.-„0]4, crystalline, m.p. 235° (dec), 



[aW -160° (c 0.2 in methanol). 



Reacts with HIO4. 



Streptomyces sp. 



M. L. Dhar, V. Thaller and M. C. Whiting, Proc. Chem. Soc, 

 148 (1958). 



1078 Antibiotic B-456, m.p. 176° (dec), UW' -22.9°. 



C 57.52, H 6.67, N 11.12 



Positive biuret, Millon. Negative Molisch, Benedict, 

 Fehling. 



* See amicetin. 



t Identical with lagosin, entry 229. 



