ES314736A1 - Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
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Merck KGaA
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E Merck AG
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Priority to ES0314736ApriorityCriticalpatent/ES314736A1/en
Publication of ES314736A1publicationCriticalpatent/ES314736A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Pyridine Compounds
(AREA)
Abstract
Process for the preparation of bis- [4-hydroxymethyl-5-hydroxy-6-methyl-pyridyl- (3) -methyl] disulfide of the formula II ** (See formula) ** characterized, that a disulfide of the formula I ** (See formula) ** in which R1 and R2 are the same or different and mean, lower acyl, or mean together (see formula) and R3 and R4 are the same or different and mean hydrogen or lower alkyl or are linked together to form a 5- or 6-membered hydrocarbon ring, is transformed, by treatment with dilute acid, into the disulfide bis- [4-hydroxymethyl-5- hydroxy-6-methyl-pyridyl- (3) -methyl] of the formula II. (Machine-translation by Google Translate, not legally binding)
ES0314736A1965-06-281965-06-28Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
ExpiredES314736A1
(en)
Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of bis-4-hydroxymethyl-5-hydroxy-6-methyl-pyridil- (3) -metilic disulfide. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of disulfide bis- (4-hydroxymethyl-5-hydroxy-6-methyl-piridyl- (3) -metilic). (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of disulfide bis- (4-hydroxymethyl-5-hydroxy-6-methyl-piridyl- (3) -metilic). (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacture of 4- (n'-acilfulmanilamido) - 5,6-dimetoxi-piramidinas (Machine-translation by Google Translate, not legally binding)