Pfizer Handbook of Microbial Metabolites 



74 



129 Mycoceranic Acid (Mycocerosic Acid), C.^He^O^, white solid, 



m.p. 30°, [a],.-' -6.9° (c 16.8 in ether). " 



CH3(CH2)2iCH— CK2— CH— CHo— CH~COOH 

 CH3 CH3 CH3 



Mycobacterium tuberculosis 



Occurs esterified with phthiocerol. 



J. D. Chanley and N. Polgar, /. Chem. Soc, 1003, 1011 



(1954). 



130 Glycolipide from Pseiidomonas aeruginosa, C;{^H,5,|Oi4 (Monohy- 



drate), colorless rectangular platelets, m.p. 86°, [aju —84° 

 (c 3.0 in chloroform). 

 Probable structure: 



H 



I 

 C — 



HCOH 



HCOH O 



I 

 HOCH 



CH 



C O— CH— CH,— COO— CH— CH,— COOH 



HCOH (CH.) 



1 i 



— HC CH3 



i 

 HOCH 



CH 



(CH,)fi 

 CH3 



CH3 



CH3 



Pseudomonas aeruginosa (three different strains) 

 F. G. Jarvis and M. J. Johnson, J. Am. Chem. Soc. 71 4124 

 (1949). (Isolation) 



131 Corynomycolenic Acid, Co^Hij^O;^, colorless oil, ni/'' 1.4758. 

 Methyl ester: [a],-,4(ii"' +9.0 ±0.3°. 



COOH 

 CH3(CH,)6CH=CH(CH,)7CHCH(CH,),3CH3 

 OH 



Corynebacterium diphtheriae 



J. Pudles and E. Lederer, Biochim. et Biophys. Acta 11 163 



(1953). 



