Pfizer Handbook of Microbial Metabolites 328 



Polyporus sulfureiis 



P. H. List, Planta Med. 6 424 (1958). 



701 Homarine, C7H7O2N (Hydrochloride), m.p. 170-175° (dec.) 

 (Picrate) m.p. 155-160°. 



c=o 



I e 



CH3 o 



Polyporus sulfureus 



P. H. List, Planta Med. 6 424 (1958). 



702 Stachydrine, C7H13O2N, white monohydrated crystals, m.p. 



(anhydr.) 235° (dec). 



CH2 CH2 



I I 



CH2 CH 



\ / \ 

 N© C=0 



CH3 \oe 

 CH3 



Aspergillus oryzae, other fungi (in small yields) 

 R. Takata, J. Soc. Chem. Ind. Japan 32 155B (1929). 



703 2,6-Diaminopimelic Acid (Both l,l- and mesa forms occur nat- 



urally), C7H14O4N2, colorless needles, m.p. >305°. 



HOOC— CH— CHo— CHo— CHo— CH— COOH 



I I 



NH2 NHo 



Corynshacterium diphtheriae, Mycobacterium tubercu- 

 losis. Bacillus anthracis, E. coli mutants 



Elizabeth Work, Biochem. J. 49 17 (1951). 



H. Smith, R. E. Strange and H. T. Zwartouw, Nature 178 

 865 (1956). 



Lester E. Casida, Jr., U. S. Patent 2,771,396 (1956). 



704 /3-Methyllanthionine, C7H14O4N0S, [a]i>-° +37.6° (c 0.5 in 1 N 



hydrochloric acid). 



HOOC— CH— CH2— S— CH— CH— COOH 



I I I 



NH2 CHs NH2 



Yeast 



This isomer is not the same as the one isolated from 



