METHODS OF SYNTHESIS OF CERTAIN HYDROXAMIC ACID COMPOUNDS

The present invention pertains to the general field of chemical synthesis, and more particularly to methods for the synthesis of certain hydroxamic acid compounds, and in particular, (E)-N-hydroxy-3-(3-phenylsulfamoyl-phenyI)-acrylamide, also known as PXD101 and Belinostat®, comprising, for example,...

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Main Authors LEEMING, PETER, RAJE, PRASAD S, REISCH, HELGE A
Format Patent
LanguageEnglish
French
Published 11.10.2016
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Summary:The present invention pertains to the general field of chemical synthesis, and more particularly to methods for the synthesis of certain hydroxamic acid compounds, and in particular, (E)-N-hydroxy-3-(3-phenylsulfamoyl-phenyI)-acrylamide, also known as PXD101 and Belinostat®, comprising, for example, the steps of: (SAF) sulfonamide formation; (PUR C) optional purification; (AAA) alkenyl-acid addition, comprising: either (i): the steps of, in order: (ACAEA) alkenyl-carboxylic acid ester addition; (PURE) optional purification; and (CAD) carboxylic acid deprotection; or (ii): the step of: (ACAA) alkenyl-carboxylic acid addition; (PUR F) optional purification; (HAF) hydroxamic acid formation; and (PUR G) optional purification (see above formula) La présente invention concerne le domaine général de la synthèse chimique, et plus particulièrement des procédés de synthèse de certains composés d'acide hydroxamique, et notamment le E)-N-hydroxy-3-(3-phénylsulfamoyl-phényl)-acrylamide, également connu sous le nom de PXD101 et de Belinostat®, qui comprend par exemple les étapes suivantes : (SAF) formation de sulfonamide ; (PURC) purification optionnelle ; (AAA) addition d'acide alcénylique, qui comprennent : soit (i) : les étapes suivantes, dans l'ordre : (ACAEA) addition d'un ester d'un acide carboxylique alcénylique ; (PURE) purification optionnelle ; et (CAD) déprotection de l'acide carboxylique ; ou (ii) : les étapes suivantes : (ACAA) addition d'un acide carboxylique alcénylique ; (PURF) purification optionnelle ; (HAF) formation d'un acide hydroxamique ; et (PURG) purification optionnelle.
Bibliography:Application Number: CA20082700173