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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SHIRATORI SEIYAKU KK
Shiratori Pharmaceutical Co Ltd
Original Assignee
SHIRATORI SEIYAKU KK
Shiratori Pharmaceutical Co Ltd
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Filing date
Publication date
Application filed by SHIRATORI SEIYAKU KK, Shiratori Pharmaceutical Co LtdfiledCriticalSHIRATORI SEIYAKU KK
Priority to JP12013679ApriorityCriticalpatent/JPS5645476A/en
Publication of JPS5645476ApublicationCriticalpatent/JPS5645476A/en
NEW MATERIAL:Compounds of formula I (R is H, alkyl).
USE: Synthetic intermediate of a compound of formula II, which is used as a blood circulation impromer or a remedy for interruption in arterial blood circulation.
PREPARATION: The reaction of a compound of formula III with another compound of formula IV (X is halogen) is conducted in the presence of an alkali such as caustic soda at 30W150°C for several min to several hr to give the compound of formula I. The compounds of formula I where R is alkyl are obtained by the alkylation of a compound of formula I where R is H with an alkylating agent.
COPYRIGHT: (C)1981,JPO&Japio
JP12013679A1979-09-201979-09-203-methyl-7-(5'-hexynyl)xanthine and preparation
PendingJPS5645476A
(en)
2-(2-chloro-4-cyclopropyl-phenyl-imino)-imidazolidine, acid addition salts thereof, medicaments based on such compounds and preparation process thereof