Selective Inhibitors of the Serine Protease Plasmin: Probing the S3 and S3‘ Subsites Using a Combinatorial Library
摘要:
A combinatorial library of 400 serine protease inhibitors with the general structure Cbz-X-aa-Trp-cyclohexanone-Trp-Y-aa-OH has been constructed. The library was synthesized on the solid phase using mix-and-split synthesis, where 20 different amino acids were incorporated at both the X-aa and Y-aa positions. These two positions correspond to the S3 and S3' subsites of the active site. Iterative deconvolution was used to identify hits from the library. The library was screened against four serine proteases: plasmin, kallikrein, thrombin, and trypsin. Seven inhibitors from the library that showed promising activities were resynthesized using solutionphase methods. Four of these compounds were good inhibitors of plasmin with IC50 values in the range of 2.7 - 3.6 mu M. The most potent of these inhibitors showed > 150-fold selectivity for plasmin when compared to the other three serine proteases.
Synthesis of ABE tricyclic analogues of methyllycaconitine using a Wacker oxidation–aldol strategy to append the B ring to the AE fragment
作者:David Barker、Margaret A. Brimble、Malcolm McLeod、G. Paul Savage、David J. Wong
DOI:10.1039/b200073n
日期:2002.3.25
conversion of the C-9 ketone 10 to vinyl ether 6. Wittig methylenation of ketone 10 afforded diene 7, however, subsequent attempts to effect double hydroboration–oxidation of diene 7 failed to realise diol 11enroute to the key dialdehyde precursor 5 required for the McMurray coupling. Wacker oxidation of the homoallyl group of 10 afforded methyl ketone 12 which underwent intramolecular aldol condensation to
Manganese(III)-based oxidative free-radical cyclization of unsaturated .beta.-keto esters, 1,3-diketones, and malonate diesters
作者:Steven A. Kates、Mark A. Dombroski、Barry B. Snider
DOI:10.1021/jo00295a035
日期:1990.4
KATES, STEVEN A.;DOMBROSKI, MARK A.;SNIDER, BARRY B., J. ORG. CHEM., 55,(1990) N, C. 2427-2436
作者:KATES, STEVEN A.、DOMBROSKI, MARK A.、SNIDER, BARRY B.
DOI:——
日期:——
Selective Inhibitors of the Serine Protease Plasmin: Probing the S3 and S3‘ Subsites Using a Combinatorial Library
作者:Fengtian Xue、Christopher T. Seto
DOI:10.1021/jm050488k
日期:2005.11.1
A combinatorial library of 400 serine protease inhibitors with the general structure Cbz-X-aa-Trp-cyclohexanone-Trp-Y-aa-OH has been constructed. The library was synthesized on the solid phase using mix-and-split synthesis, where 20 different amino acids were incorporated at both the X-aa and Y-aa positions. These two positions correspond to the S3 and S3' subsites of the active site. Iterative deconvolution was used to identify hits from the library. The library was screened against four serine proteases: plasmin, kallikrein, thrombin, and trypsin. Seven inhibitors from the library that showed promising activities were resynthesized using solutionphase methods. Four of these compounds were good inhibitors of plasmin with IC50 values in the range of 2.7 - 3.6 mu M. The most potent of these inhibitors showed > 150-fold selectivity for plasmin when compared to the other three serine proteases.
112. Fused carbon rings. Part VII. The preparation of cyclic hydrocarbons from unsaturated tertiary alcohols. The synthesis of cis-9-methyl-octalin and -decalin, and a proof of the presence of the angular methyl group