205 Phenols and Phenol Ethers (General) 



423 Penitrinic Acid, C15H17O5N, pale yellow bars, m.p. 217-223° 



(dec), [ali)-'^ —549° (in dimethylformamide). 



Similar in structure to sorbicillin. The two pigments 

 occur together. 



Penicillhnn notatum Westling 



Frank H. Stodola, Jacques L. Wachtel, Andrew J. Moyer and 

 Robert D. Coghill, J. Biol. Chem. 159 67 (1945). 



Kei Arima, Kazuo Kamagata and Hideo Nakamura, /. Agr. 

 Chem. Soc. Japan 27 389 (1953). (Structure work) 



424 d,Z-Erdin, CigHioOyCL, yellow crystals, m.p. 210-212°. 



CH3 f OCH3 



' OH ^COOH 



Aspergillus terreiis Thom 



Erdin occurs naturally as the racemate although the 

 closely related geodin, which is present in the same cul- 

 ture, is the d-isomer. 



Harold Raistrick and George Smith, Biochem. J. 30 1315 

 (1936). (Isolation) 



D. H. R. Barton and A. I. Scott, /. Chem. Soc, 1767 (1958). 

 ( Structure ) 



425 Curvularin, CieHo.jOg, colorless crystals, m.p. 206°, [ah^^ —36.3° 



(c 3.8 in ethanol). 



OH 



O 



il 



C(CH2)5 — CH— CH3 



/ 

 HO CH2 



Curvularia sp. 



The yield was 0.40 to 0.48 g. per liter of culture broth. 

 A second compound CieHigO.r;, m.p. 224.5°, [ajn'^ -83°, 

 (also phenolic) was isolated from the same culture. 



C. Calam (Imperial Chemical Industries), unpublished. 

 (Isolation) 



O. C. Musgrave, /. Chem. Soc, 4301 (1956). (Isolation) 



