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Priority claimed from FR9210329Aexternal-prioritypatent/FR2695126B1/en
Application filed by Sanofi SafiledCriticalSanofi Sa
Priority to FI962714ApriorityCriticalpatent/FI103277B/en
Publication of FI962714A0publicationCriticalpatent/FI962714A0/en
Publication of FI962714ApublicationCriticalpatent/FI962714A/en
Application grantedgrantedCritical
Publication of FI103277B1publicationCriticalpatent/FI103277B1/en
Publication of FI103277BpublicationCriticalpatent/FI103277B/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
Abstract
The invention relates to a process for preparing therapeutically useful naphthyridine derivatives of the formula I or pharmaceutically acceptable salts thereof, in which R1 is a C1-12-alkoxy group or the group -N(C1-6 alkyl)2, R2 is -OH, R3 is H, A is S, with R being absent, or A is N, with R being H or C1-4-alkyl which can be substituted by phenyl, and B is optionally a substituted pyridyl ring. <IMAGE>
FI962714A1992-08-271996-07-01
A process for the preparation of therapeutically useful pyrrolo and thieno [3,2-c] naphthyridine derivatives
FI103277B
(en)