ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
It is shown by 13C-NMR. and synthesis of 6,7-dimethyl-3-ethoxycarbonylamino-quinoxaline-2-carboxamide (5) and methyl 6,7-dimethyl-3-(N′-methylureido)-quinoxaline-2-carboxylate (6) that hydrolysis of lumichrome (1, R = H) must yield 6,7-dimethyl-3-ureidoquinoxaline-2-carboxylic acid (2, R = H) and not 6,7-dimethyl-2-oxo-1,2,9,9a-tetrahydrooxazolo[4,5-b]quinoxaline-9a-carboxamide (2a, R = H), as previously proposed.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19810640612
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