Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Daiichi Pharmaceutical Co Ltd
Original Assignee
Daiichi Pharmaceutical Co Ltd
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Filing date
Publication date
Application filed by Daiichi Pharmaceutical Co LtdfiledCriticalDaiichi Pharmaceutical Co Ltd
Priority to JP10324875ApriorityCriticalpatent/JPS5227786A/en
Publication of JPS5227786ApublicationCriticalpatent/JPS5227786A/en
PURPOSE: 1-Hydrazinophthalazine useful as antibypertensive agent is prepared from O-cyanobenzaldehyde or its derivative in good yield in the presence of a catalyst.
COPYRIGHT: (C)1977,JPO&Japio
JP10324875A1975-08-261975-08-26Preparation of phthalazinone
PendingJPS5227786A
(en)