Facile and efficient addition of terminal alkynes to benzotriazole esters: synthesis of d-erythro-sphingosine using ynones as the key intermediate
作者:José Antonio Morales-Serna、Alejandro Sauza、Gabriela Padrón de Jesús、Rubén Gaviño、Gustavo García de la Mora、Jorge Cárdenas
DOI:10.1016/j.tetlet.2013.10.082
日期:2013.12
From the perspective of synthesis, ynones are compounds of considerable interest because of their occurrence in a wide variety of biologically active molecules and as key synthetic intermediates. In this context, a facile and highly efficient synthesis of ynones was developed based on the high reactivity of benzotriazole esters formed in situ. Lithium acetylides can alkylate various carboxylic acids
Synthesis and preliminary evaluation of 5,7-dimethyl-2-aryl-3H-pyrrolizin-3-ones as angiogenesis inhibitors
作者:Nicholas S. Kirk、Anna Bezos、Anthony C. Willis、Pichit Sudta、Sunit Suksamrarn、Christopher R. Parish、Marie Ranson、Michael J. Kelso
DOI:10.1016/j.bmcl.2016.02.033
日期:2016.4
Sunitinib (Sutent®) is a receptor tyrosine kinase (RTK) and angiogenesis inhibitor approved for the treatment of renal cell carcinomas, gastrointestinal stromal tumours and pancreatic neuroendocrine tumours. A key structural motif retained throughout medicinal chemistry efforts during sunitinib’s development was the indoline-2-one group. In the search for new anti-angiogenic scaffolds, we previously