C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/264.3
C07D 237/32 (2006.01)
Patent
CA 1151648
ABSTRACT A process for producing 7-alkoxycarbonyl-6,8-dimethyl-1-phthalazone- 4-.alpha.-hydroxyacetic acid. This compound can be obtained by hydrolyzing 7- alkoxycarbonyl-6,8-dimethyl-4-(.alpha.-halogeno-.alpha.-substituted methyl)-1-phthalazone with a base. The compound is a useful intermediate in the preparation of 7- alkoxycarbonyl-6,8-dimethyl-4-hydroxymethyl-1-phthalazone, a blood platelet anti-coagulant and phosphodiesterase inhibitor.
413865
Nishizawa Rinzo
Takei Yukio
Yoshida Masao
Fetherstonhaugh & Co.
Nippon Kayaku Kabushiki Kaisha
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