Syntheses of pyrimido[4,5-c]pyridazine derivatives. I. A novel reaction of .ALPHA.-diazo-.BETA.-oxo-5-(4-chloropyrimidine)propionate with hydrazine leading to 1,2-dihydro-4-hydroxypyrimido[4,5-c]pyridazine-3-carboxamide.
KIMURA, YOSHITAKA, MIYAMOTO, TERUYUKI, MATSUMOTO, JUNICHI, MINAMI, SHINSAKUVolume:
24
Year:
1976
Journal:
CHEMICAL & PHARMACEUTICAL BULLETIN
DOI:
10.1248/cpb.24.2637
File:
PDF, 862 KB
1976