225382-63-8Relevant articles and documents
Cross-coupling methods for the large-scale preparation of an imidazole - Thienopyridine: Synthesis of [2-(3-methyl-3H-imidazol-4-yl)-thieno[3,2-b]pyridin-7-yl] -(2-methyl-1H-indol-5-yl)-amine
Ragan,Raggon,Hill,Jones,McDermott,Munchhof,Marx,Casavant,Cooper,Doty,Lu
, p. 676 - 683 (2013/09/05)
The multihundred-gram synthesis of [2-(3-methyl-3H-imidazol-4-yl)-thieno[3,2-b]pyridin-7-yl] -(2-methyl-1H-indol-5-yl)-amine (1) is described utilizing a Stille cross-coupling of an iodothienopyridine (3) with 5-(tributylstannyl)-1-methylimidazole (11). Several cross-coupling methods were evaluated for the conversion of thienopyridine 3 to imidazole - thienopyridine 2, but only two were effective: the Stille coupling and a Negishi cross-coupling of the organozinc reagent derived from 2-(tertbutyldimethylsilyl)-1-methylimidazole and iodothienopyridine (3). The latter procedure worked well on laboratory scale (50 g), but was capricious upon scale-up. The issues with scale-up of an organostannane reagent are discussed, including control and analysis of organotin levels.
Thienopyrimidine and thienopyridine derivatives useful as anticancer agents
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, (2008/06/13)
The invention relates to compounds of the formulas 1 and 2 and to pharmaceutically acceptable salts and hydrates thereof, wherein X1, R1, R2and R11are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formulas 1 and 2 and to methods of treating hyperproliferative disorders in a mammal by administering the compounds of formulas 1 and 2.
Thiophene derivatives useful as anticancer agents
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, (2008/06/13)
The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts and hydrates thereof, wherein X, Y, R1, R2 and R11 are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating hyperproliferative disorders in a mammal by administering the compounds of formula 1.