Synthesis of indolizines

C - Chemistry – Metallurgy – 07 – D

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C07D 471/04 (2006.01) A61K 31/437 (2006.01) A61P 35/00 (2006.01) C07D 213/90 (2006.01)

Patent

CA 2496764

Disclosed are methods of preparing substituted indolizines represented by the following formula: comprising reacting a substrate represented by the following formula: with either the cyclization reagent of the following formula: or, a reagent prepared by reacting the compound represented the formula below with an alkylating agent: The variables in the above formulas are defined herein.

L'invention concerne des procédés de préparation d'indolizines substituées représentées par la formule (IIa), consistant à faire réagir un substrat représenté par la formule (IVa) avec le réactif de cyclisation de formule (IIIa) ou avec un réactif préparé par réaction du composé représenté par la formule (IIIb) avec un agent d'alkylation. Les variables des formules susmentionnées sont telles que définies dans la description.

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