Claims
- 1. A fused pyridazine compound of the formula: ##STR34## wherein: R.sup.1 is hydroxyalkyl having 1 to 4 carbon atoms in the alkyl moiety or alkoxyalkyl having 1 to 4 carbon atoms in each of the alkoxy and alkyl moieties;
- R.sup.2 is phenyl having at least one substituent selected from the group consisting of halogen, alkyl having 1 to 4 carbon atoms and alkoxy having 1 to 4 carbon atoms;
- n is 1 or 2;
- the bond represented by the full line and dotted line is a single bond or a double bond.
- 2. A fused pyridazine compound according to claim 1, which is selected from the group consisting of:
- 9-methoxymethyl-2-(4-methylphenyl)-2,5,6,7-tetrahydro-3H-thieno-[2',3':6,7]cyclohepta[1,2-c]pyridazin-3-one,
- 8-(1-hydroxyethyl)-5,6-dihydro-2-(4-methylphenyl)thieno [2,3-h]cinnolin-3(2H )-one.
- 3. A fused pyridazine compound according to claim 1, which is 9-methoxymethyl-2-(4-methylphenyl)-2,5,6,7-tetrahydro-3H-thieno-[2',3':6,7]cyclohepta[1,2-c]pyridazin-3-one.
- 4. A fused pyridazine compound according to claim 1 which is 8-(1-hydroxyethyl)-5,6-dihydro-2-(4-methylphenyl) thieno-[2,3-h ]cinnolin-3(2H)-one.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-240378 |
Aug 1991 |
JPX |
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CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation of application of 08/208,950, filed Feb. 28, 1994 (abandoned), which is a continuation-in-part application of International Application No. PCT/JP92/01067 filed Aug. 24, 1992.
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Non-Patent Literature Citations (1)
Entry |
I. Nakao et al, "Studies on the Synthesis of Condensed Pyridazine Derivatives. IV. Synthesis and Anxiolytic Activity of 2-Aryl-5,6-dihydro-(1)benzothiepino[5,4-c]pyridazin-3(2H)-ones and Related Compound" Chem. Pharm. Bull. 39(10) 2556-2563 (1991). |
Continuations (1)
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Number |
Date |
Country |
Parent |
208950 |
Feb 1994 |
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