[EN] CHEMICAL CONSTRUCTS<br/>[FR] PRODUITS DE SYNTHESE CHIMIQUES
申请人:GLAXO GROUP LTD
公开号:WO2000020357A2
公开(公告)日:2000-04-13
The invention provides a chemical construct for use in solid phase synthesis comprising a solid support Q having linked thereto via a connecting group Y a substrate R; the connecting group Y having first and second cleavage sites which are orthogonally and selectively cleavable; the second cleavage site being selectively cleavable to release the substrate; and the first cleavage site being located at a position between the second cleavage site and the solid support and being selectively cleavable to release a fragment Fr comprising the substrate and at least a portion of the connecting group Y; characterised in that cleavage at the first cleavage site forms or introduces on the chemical fragment Fr at the first cleavage site a moiety comprising a sensitising group G (such as an amino group) which sensitises the chemical fragment Fr to instrumental, e.g. mass spectroscopic, analysis. Also provided are methods of analysis employing the constructs, as well as intermediate constructs.
[EN] CHEMICAL CONSTRUCTS<br/>[FR] CONSTRUCTIONS CHIMIQUES
申请人:GLAXO GROUP LTD
公开号:WO2001025171A1
公开(公告)日:2001-04-12
A chemical construct for use in solid phase synthesis comprising a solid support Q having linked thereto via a connecting group Y a substrate R; the connecting group Y having first and second cleavage sites which are orthogonally and selectively cleavable; the second cleavage site being selectively cleavable to release the substrate; and the first cleavage site being located at a position between the second cleavage site and the solid support and being selectively cleavable to release a fragment Fru comprising the substrate and at least a portion of the connecting group Y, wherein the said portion contains a chromophore Cu which facilitates analysis of the fragment Fru by ultra violet, visible or fluorescence spectroscopy, the chromophore Cu having a principal log E¿max? value of at least 2.5 and wherein (i) the principal log Emax value is at least 1.5 times greater than the principal log Emax of the substrate R; or (ii) the chromophore C?u¿ has an absorption peak at a wavelength remote from absorptions due to the substrate R; and to methods of analysis of products of solid phase synthesis using the constructs.
Syntheses of 1'-Methyl- and 4'-Methyl-1,2-benzanthracenes<sup>1</sup>