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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Priority to ES212331ApriorityCriticalpatent/ES212331A1/en
Publication of ES212331A1publicationCriticalpatent/ES212331A1/en
Process for the preparation of 2-methyl-pyridine- (4) -carboxylic acid derivatives characterized in that the 2-methyl-pyridine- (4) -carboxylic acid hydrazide is reacted with a carbonyl compound of the general formula ** ( see formula) **. (Machine-translation by Google Translate, not legally binding)
ES212331A1953-11-241953-11-24
PROCEDURE FOR THE PREPARATION OF 2-METHYL-PYRIDINE-4-CARBOXYLIC ACID DERIVATIVES
ExpiredES212331A1
(en)
A procedure for the preparation of solutions of the polycondensates of acid amidas alquiliden and aralquiliden-bis-tiocarboxºlicos (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining a derivative of 1,1-dioxide from 3,4-hydride-1,2,4-benzotiadiacin (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining a derivative of 1,1-dioxide from 3,4-dihydro-1,2,4-benzotiadiacin (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacture of an easily soluble salt of 1- (3, 4-dietoxibencil) -6,7-dietoxy-isoquinoline (Machine-translation by Google Translate, not legally binding)
Procedure for manufacturing and obtaining compounds and derivatives of benzotidyacine-1,1-dioxides (chlorotidates) (Machine-translation by Google Translate, not legally binding)