Methods and compounds for producing dipeptidyl peptidase IV inhibitors and intermediates thereof
申请人:Bristol-Myers Squibb Company
公开号:EP2517706A2
公开(公告)日:2012-10-31
Methods and compounds for production of cycloproyl-fused pyrrolidine-based inhibitors of dipeptidyl peptidase IV are provided.
提供了生产环丙基融合吡咯烷基二肽基肽酶 IV 抑制剂的方法和化合物。
Prebiotic synthesis of 2-deoxy-<scp>d</scp>-ribose from interstellar building blocks promoted by amino esters or amino nitriles
作者:Andrew M. Steer、Nicolas Bia、David K. Smith、Paul A. Clarke
DOI:10.1039/c7cc06083a
日期:——
to debate. Here we demonstrate that 20 mol% of proteinogenic amino esters promote the selective formation of 2-deoxy-D-ribose over 2-deoxy-D-threopentose in combined yields of ≥4%. We also demonstrate the first aldol reaction promoted by prebiotically-relevant proteinogenic amino nitriles (20 mol%) for the enantioselective synthesis of D-glyceraldehyde with 6% ee, and its subsequent conversion into
Efficient asymmetric organocatalytic formation of erythrose and threose under aqueous conditions
作者:Laurence Burroughs、Matthew E. Vale、James A. R. Gilks、Henrietta Forintos、Christopher J. Hayes、Paul A. Clarke
DOI:10.1039/c0cc00613k
日期:——
Esters of proteinogenic amino acids efficiently catalyse the formation of erythrose and threose underaqueousconditions in the highest yields and enantioselectivities yet reported. Remarkably while esters of (L)-proline yield (L)-carbohydrates, esters of (L)-leucine and (L)-alanine generate (D)-carbohydrates, offering the potential to account for the prebiotic link between natural (L)-amino acids