[Na].[CH2:2]([SH:5])[CH:3]=[CH2:4].[CH3:6][O:7][C:8]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:11](Cl)=[N:10][N:9]=1>CO>[CH3:6][O:7][C:8]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:11]([S:5][CH2:2][CH:3]=[CH2:4])=[N:10][N:9]=10.23 g(0.01 mol) of metallic sodium was dissolved in 30 ml of absolute methanol and then mixed with 0.93 ml(0.01 mol) of allylmercaptan. To this mixture was added 1.95 g(0.01 mol) of 1-methoxy-4-chlorophthalazine obtained from Preparation 7. The reaction solution was refluxed for one hour and then treated according to the same manner as Example 1 to obtain the title compound as a freezing pale white crystal.
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