发明公开
EP2240500A1 PROCEDE DE SYNTHESE DE DERIVES D'ACIDE HYDROXY-BISPHOSPHONIQUE 有权
用于合成羟基二膦酸衍生物的方法

PROCEDE DE SYNTHESE DE DERIVES D'ACIDE HYDROXY-BISPHOSPHONIQUE
摘要:
The present invention relates to a method for preparing a hydroxy-bisphosphonic acid derivative or a salt thereof, from the corresponding carboxylic acid, comprising the following steps: - activation of the carboxylic acid function in the form of the boronate derivative thereof through the action of a borane, then - reaction with tris(trimethyl­silyl)phosphite, under Arbuzov conditions - treatment with an alcohol, chosen in particular from an aliphatic alcohol or trifluoromethanol, and - separation of the hydroxy-bisphosphonic acid derivative formed, from the reaction medium.
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