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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aska Pharmaceutical Co Ltd
Teikoku Chemical Industry Co Ltd
Original Assignee
Teikoku Chemical Industry Co Ltd
Teikoku Hormone Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teikoku Chemical Industry Co Ltd, Teikoku Hormone Manufacturing Co LtdfiledCriticalTeikoku Chemical Industry Co Ltd
Priority to JP5807275ApriorityCriticalpatent/JPS51133271A/en
Publication of JPS51133271ApublicationCriticalpatent/JPS51133271A/en
PURPOSE: To prepare directly, easily and cheaply compounds of formula I, which contain an sec-amine group and are useful as synthetic intermediates for addicting analgesics, etc., by the cyclization of 4-piperidinol derivatives of for nonmula 11.
COPYRIGHT: (C)1976,JPO&Japio
JP5807275A1975-05-141975-05-14Process for preparing heterocyclic compounds
PendingJPS51133271A
(en)
7-methyl and 7-methyl-8-lower alkyl b/c cis or trans morphinan-6-one compounds, process for their preparation and pharmaceutical preparations containing them