abstract |
3-HYDRAZINO-1,2,8,9-TETRAAZAPHENALENES OPTIONALLY SUBSTITUTED IN THE 4, 5, 6, 7 AND/OR 9 POSITIONS AND THEIR SALTS ARE CARIOVASCULAR AGENTS AND ARE PREPARED FROM 3-THIONO2,3-DIHYDRO-1,2,8,9-TETRAAZAPHENALENES. REPRESENTATIVE EMBODIMENTS ARE 3-HYDRAZINO-1,2,8,9-TETRAAZAPHENALENE AND 3-HYDRAZINO-9-PHENYL-1,2,8,9-TETRAAZAPHENALENE. |