176729-59-2Relevant articles and documents
Synthesis and reactivity of 2-thionoester pyrroles: A route to 2-formyl pyrroles
Kim, Min Joon,Gaube, Sophie M.,Beh, Michael H. R.,Smith, Craig D.,Thompson, Alison
, p. 31773 - 31780 (2019/10/19)
2-Functionalised pyrroles exhibit considerable synthetic utility. Herein, the synthesis and reactivity of 2-thionoester (-C(S)OR) pyrroles is reported. 2-Thionoester pyrroles were synthesised using a Knorr-type approach from aliphatic starting materials. 2-Thionoester pyrroles were reduced to the corresponding 2-formyl pyrroles, or the deuterated formyl variant, in one step using RANEY nickel, thereby removing the need for the much-utilised hydrolysis/decarboxylation/formylation steps that are typically required to convert Knorr-type 2-carboxylate pyrroles into 2-formyl pyrroles. 2-Thionoester pyrroles proved tolerant of typical functional group interconversions for which the parent 2-carboxylate pyrroles have become known.
GLYCOPYRANOSYLOXYPYRAZOLE DERIVATIVES AND MEDICINAL USE THEREOF
-
Page/Page column 15, (2010/02/07)
The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R1, R2 and R3 represent a hydrogen atom or a halogen atom; R4 represents a lower alkyl group or a halo(lower alkyl) group; and R5 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, etc., a pharmaceutically acceptable salt thereof or a prodrug thereof., which exert an excellent inhibitory activity in human SGLT2, and therefore are useful as drugs for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, pharmaceutically acceptable salts thereof or prodrugs thereof, production intermediates thereof and pharmaceutical uses thereof.
