579 Unclassified Metabolites 



Streptomyces sp. 



Masahiko Kuraya, Bunji Takahashi, Yorio Hinuma, Takaaki 

 Yashima, Kenzo Watanabe, Masa Kuroya and Susumu Ha- 

 mada, /. Antibiotics (Japan) 7A 58 (1954). 



1104 Antifungal Substance, colorless needles, m.p. 283-289°, [a]i,'' 



-51°. 



A water-soluble compound similar to toyokamycin and 

 monilin. Analysis: C 49.33-49.47, H 4.56-4.90, N 

 23.75-24.14. 



Streptomyces sp. 



Hiroshi Yamamoto, Shigehiro Fujii, Koichi Nakazawa, Akira 

 Miyake, Hiromu Hitomi and Masahiko Imanishi, Takeda 

 Kenkyusho Nempo 16 26 (1957). 



1105 Antifungal substance produced by Streptomyces strain No. 1037. 



Crystalline needles, m.p. 283-289°, [alo'-' -51°. C 

 49.33-49.47 H 4.56-4.90 N 23.75-24.14, no halogen or 

 sulfur. 



It seems to belong to the same group of substances as 

 toyokamycin and monilin. 



Hiroshi Yamamoto, Shigehiro Fujii, Koichi Nakazawa, Akira 

 Miyake, Hiromu Hitomi and Masahiko Imanishi, Ann. Rept. 

 Takeda Research Lab. 16 26 (1957). 



1106 Argomycin, ConH^gO^N, m.p. 164°, [(x]ir' +8.2° (in ethanol). 



May be a macrolide. 



Streptomyces griseolus 



Toji Hata, Yoshimoto Sano, Hideo Tatsuta, Ryozo Sugawara, 

 Akihiro Matsumae and Kokichi Kanamori, J. Antibiotics (Ja- 

 pan) 8A 9 (1955). 



1107 Aspelein, C29H20O10, dark red plates, no m.p. 



This pigment contained two hydroxyl groups (diacetate, 

 yellow crystals, m.p. 276-285°) and an alkoxyl group. 

 Spectra described. 



Aspergillus elegans 



P. E. Gregoire, Bull. soc. chim. biol. 33 1681 (1951). 



Aterrimins — complex containing aterrimins A and B, exhibiting 

 characteristics of a lactone; contain C, H and O and have 

 no definite m.p. 



1108 Aterrimin A, [a],.-" +245° in ethanol. U.V. 277, 287, 310-325 



m^ in absolute alcohol C. 65.5 H 7.8 O 26.7 (by differ- 

 ence). 



