RESUMO
Confronted with the need to significantly raise the productivity of remotely located chemistry CROs Pfizer embraced a commitment to continuous improvement which leveraged the tools from both Lean Six Sigma and queue management theory to deliver positive measurable outcomes. During 2012 cycle times were reduced by 48% by optimization of the work in progress and conducting a detailed workflow analysis to identify and address pinch points. Compound flow was increased by 29% by optimizing the request process and de-risking the chemistry. Underpinning both achievements was the development of close working relationships and productive communications between Pfizer and CRO chemists.
Assuntos
Serviços Contratados/organização & administração , Indústria Farmacêutica/organização & administração , Pesquisa/organização & administração , Química Farmacêutica/métodos , Comunicação , Serviços Contratados/normas , Desenho de Fármacos , Descoberta de Drogas/métodos , Indústria Farmacêutica/normas , Eficiência Organizacional , Humanos , Melhoria de Qualidade , Pesquisa/normas , Fluxo de TrabalhoRESUMO
The synthesis and biological evaluation of novel Tie-2 kinase inhibitors are presented. Based on the pyrrolopyrimidine chemotype, several new series are described, including the benzimidazole series by linking a benzimidazole to the C5-position of the 4-amino-pyrrolopyrimidine core and the ketophenyl series synthesized by incorporating a ketophenyl group to the C5-position. Medicinal chemistry efforts led to potent Tie-2 inhibitors. Compound 15, a ketophenyl pyrrolopyrimidine urea analog with improved physicochemical properties, demonstrated favorable in vitro attributes as well as dose responsive and robust oral tumor growth inhibition in animal models.
Assuntos
Antineoplásicos/síntese química , Antineoplásicos/farmacologia , Descoberta de Drogas , Neoplasias/tratamento farmacológico , Inibidores de Proteínas Quinases/síntese química , Inibidores de Proteínas Quinases/farmacologia , Pirimidinas/farmacologia , Pirróis/farmacologia , Receptor TIE-2/antagonistas & inibidores , Animais , Antineoplásicos/administração & dosagem , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Relação Dose-Resposta a Droga , Humanos , Masculino , Estrutura Molecular , Neoplasias/enzimologia , Neoplasias/patologia , Inibidores de Proteínas Quinases/administração & dosagem , Pirimidinas/síntese química , Pirimidinas/química , Pirróis/síntese química , Pirróis/química , Ratos , Ratos Sprague-Dawley , Receptor TIE-2/metabolismo , Relação Estrutura-Atividade , Ensaios Antitumorais Modelo de XenoenxertoRESUMO
[Structure: see text] The development of a concise enantioselective synthesis of nicotinic alkaloid 1 is presented. The route features the synthesis and use of a "stable" aliphatic triflate 21 in an alkylation step to generate Heck precursor 24 and an enantioselective cyclization to establish a compound with the key [3.2.1]-bicyclic core, 29.
