1989 年 37 巻 10 号 p. 2679-2682
Cyclization reaction of hydrazine with carbazole-2, 3-methyl dicarboxylates gave 1, 4-dioxo-1, 2, 3, 4-tetrahydropyridazino[4, 5-b]carbazoles. Chlorodehydroxylation provided 1, 4-dichloropyridazino[4, 5-b]carbazoles and nucleophilic substitution gave 1, 4-dialkoxy pyridazino[4, 5-b]carbazoles. These compounds were tested for cytotoxic activity against L1210 leukemia in mice.