Carbamoylation process

Details Carbamoylation process Carbamoylation process

1999-08-09

2000-08-15

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544319, 544327, 544333, 514256, 514269, C07D23902, C07D41500, C07D40100, A01N 4354, A01K 31505

Patent

active

061039020

ABSTRACT:
The present invention is concerned with a novel process for the carbamoylation of substituted pyridines, especially with a process for the preparation of compounds of formula I ##STR1## wherein R.sup.4 to R.sup.8 represent hydrogen, lower-alkoxy or halogen; or optionally salts thereof.

REFERENCES:
patent: 6004965 (1999-12-01), Breu et al.
Tetrahedron; Minisci et al; vol. 41, No. 19, pp. 4157-4170 (1985).

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