41 



Alcohols, Glycols and Compounds Related to Sugars 



59 Paromomycin, C23H45O14N5, white amorphous solid, [ajn^^ +64° 

 (c 1.0 in water). Hydrochloride [ix]d~'' +56.5° (c 1.0 in 

 water). 



2-Deoxystreptamme 



Paromamine 



Paromobiosamine 



D-Ribose 



Streptomyces rimosus forma paromomycinus 

 Paromomycin seems to be identical with catenuHn. 

 Theodore H. Haskell, James C. French and Quentin R. Bartz, 

 J. Am. Chem. Soc. 81 3480 (1959). 

 Ibid. Belgian Patent 547,976. 



60 Neomycins. (Fradiomycins, Streptothricins, Neomins, Mycifra- 

 din, Nivemycins, Myacins) 



Neomycin A is identical with neamine, a moiety of 

 neomycins B and C. Neomycins B and C are identical ex- 

 cept for the diaminohexose components. 



Neomycin B ( Streptothricin B II), C23H46O12N6, amor- 

 phous hygroscopic white powder, no definite m.p., [ajn'^ 

 +83° (in 0.2 N H0SO4). 



C12H05O5N4— O— CsHeOlOHla— O— C6H70(OH)2(NH2)2 



Neamine 

 (structure 

 unknown) 



D-Ribose 



Diaminohexose B 

 (structure unknown) 



Neomycin C (Streptothricin B I), C23H46O12N6, amor- 

 phous, hygroscopic white powder, no definite m.p., [ajn""' 

 + 121° (in 0.2 N H2SO4). 



