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COIRRE
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COIRRE
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Priority to ES390479ApriorityCriticalpatent/ES390479A2/en
Publication of ES390479A2publicationCriticalpatent/ES390479A2/en
Improvements in the object of the patent 358,327, for the process for the preparation of hydroxyproline derivatives, and more particularly the process for the preparation of an L-hydroxyproline derivative of the formula: **(See formula)** in which R represents the group OH, ONa, m-trifluomethylanilide or p-trifluomethylanilide; R1 represents the group -COCH3, 7-theophyllinylacetyl, p-isobutylphenylacetyl or 2,4-dinitrophenyl; and R2 represents the hydrogen atom or the p-isobutylphenylacetyl group, characterized in that the acid condenses **(See formula)** with a halide Hal R1, where Hal represents a halogen atom and R1 is as previously defined, at a temperature between 0 and 25ºC, and because the OH and COOH functions are esterified or the COOH function is salified or amidified. (Machine-translation by Google Translate, not legally binding)
ES390479A1971-04-071971-04-07Procedure for preparation of hydroxyproline derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES390479A2
(en)
Procedure for the preparation of new oxazolinic and tiazolinic derivatives with nematocide action (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of new 2-amino-5-nitrotriazoles replaced in the amino group. (Machine-translation by Google Translate, not legally binding)
Procedure for preparing inzzles carrying the acetoximethyl-replaced group in position n. (Machine-translation by Google Translate, not legally binding)