Pfizer Handbook of Microbial Metabolites 88 



153 Viridicatic Acid (Ethylcarlosic Acid), CisHieOe, colorless plate- 



lets, m.p. 174.5°, [a]n46i'° -105° (c 1.0 in ethanol). 



HO CO— CH2— CH2— CH2— CH,— CHa 



\ / 



C c 



I I 



CH C 



HOOC— CH2 ^ O 



Penicillium viridicatum Westling 



J. H. Birkinshaw and M. S. Samant, Biochem. J. 74 369 

 (1960). 



154 Nephrosterinic Acid, C17H28O4, colorless leaflets, m.p. 96°, [<xW° 



+ 10.81°. 



HOOC CH2 



\ / 



CH C 



I I 



CH C 



/ \o/\ 



CH3(CH2)io O 



Nephromopsis endocrocea Asahina (=Cetraria en- 

 docrocea (Asahina) Sato) 



Nephrosteranic acid, endocrocin and caperin were also 

 present. 



Yasuhiko Asahina, Masaiti Yanagita and Y. Sakurai, Ber. 

 70B227 (1937). 



155 Nephrosteranic Acid, C17H30O4, colorless plates, m.p. 95°. 



HOOC CH3 



CH CH 



I 1 



CH C 



CH3(CH2)io ^ O 



Nephromopsis endocrocea Asahina 



Yasuhiko Asahina, Masaiti Yanagita and Y. Sakurai, Ber. 

 70B 227 (1937). 



156 Z-Lichesterinic Acid, C19H32O4, colorless needles, m.p. 124°, [cc]v^^ 



-32.66°. 



HOOC CH3 



\ / 



c— c 



I I 



CH C 



CH3(CH2)i2 " O 



