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.)
MSD International Holdings GmbH
Original Assignee
Scherico 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
Priority claimed from US05/636,010external-prioritypatent/US4044140A/en
Priority claimed from CH1451376Aexternal-prioritypatent/CH629488A5/en
Application filed by Scherico LtdfiledCriticalScherico Ltd
Publication of ES453555A1publicationCriticalpatent/ES453555A1/en
A process for the preparation of picolinic acid derivatives of the general formula ** (Formula) ** and their pharmaceutically acceptable salts, formula in which Q is hydroxy, alkoxy, cyanoalkoxy, glyceryl, -NR7R8, -O-alcoholylene-NR7R8 or -NR7-alcohol-OH; R7 and R8 which may be the same or different are hydrogen or alcohol or R7 and R8 together with the nitrogen atom of the amido group can form a 5- to 7-membered heterocyclic ring which may contain a second heteroatom, which is oxygen or nitrogen; R5 is hydrogen. (Machine-translation by Google Translate, not legally binding)
ES453555A1975-11-281976-11-23
A PROCEDURE FOR THE PREPARATION OF DERIVATIVES OF PICOLINIC ACID.
ExpiredES453555A1
(en)
Procedure for the preparation of N- (r-tetrahydrofurfuril) -noroximorphone and N- (s-tetrahydrofurfuril) -noroximorphone new. (Machine-translation by Google Translate, not legally binding)
Procedure to prepare racemic or optically active pentaciclic products of the apovincaminic acid group (Machine-translation by Google Translate, not legally binding)