Process for producing pyrido[1,2-a]pyrimidine derivative

Details Process for producing pyrido[1,2-a]pyrimidine derivative Process for producing pyrido[1,2-a]pyrimidine derivative

1991-06-19

1993-10-19

Page, Thurman K.

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

Organic compounds

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

546276, C07D23910, 544

Patent

active

052546888

ABSTRACT:
A pyrido[1,2-a]pyrimidine derivative which is useful as an antiallergic agent can be produced from a 2-aminopyridine derivative or a hydrazoic acid salt thereof by a one-pot and substantially one-step process.

REFERENCES:
patent: 4474953 (1984-10-01), Wade
patent: 5081243 (1992-01-01), Sano et al.
Patent Abstracts of Japan, vol. 13, No. 56 (C.566)[3404], Feb. 8, 1989; & JP-A-63 246 374.

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