Sodium Borohydride-Nickel Chloride-Methanol Catalytic System for Regioselective Reduction of Electron-Rich Conjugated Dienes and Reductive Cleavage of Allyl Esters Involving π-Allylnickel Intermediates
The regioslective reduction of electron-rich dienes to monoolefins and the reductivecleavage of allyl esters were fulfilled by employing a sodium borohydride-nickel chloride-methanol catalytic system with exceedingly simple manipulations and high functional group tolerability. Both of the reductive reactions may involve π-allylnickel intermediates generated from fresh nickel boride.
A novel chiral oxazolidine organocatalyst for the synthesis of an oseltamivir intermediate using a highly enantioselective Diels–Alder reaction of 1,2-dihydropyridine
Enantioselective DielsâAlder reactions of 1,2-dihydropyridines with acroleins using a novel chiral oxazolidine organocatalyst afforded chiral isoquinuclidines that is an efficient synthetic intermediate of oseltamivir, with fairly good chemical yield and excellent enantioselectivity (90%, up to >99% ee).
[EN] SMALL MOLECULE INDUCERS OF GDNF AS POTENTIAL NEW THERAPEUTICS FOR NEUROPSYCHIATRIC DISORDERS<br/>[FR] PETITES MOLÉCULES INDUCTRICES DE GDNF COMME NOUVELLE THÉRAPEUTIQUE POSSIBLE DES TROUBLES NEUROPSYCHIATRIQUES
申请人:UNIV COLUMBIA
公开号:WO2013028999A1
公开(公告)日:2013-02-28
The invention provides a compound having the structure (I), wherein A is a substituted or unsubstituted ring; Z is present or absent and when present is (II), wherein n is 0, 1, 2, 3, or 4; Y is -(CR11R12)-, -NH(CR11R12)- or -O(CR11R12)- wherein R11 and R12 are each hydrogen or combine to form a carbonyl; and wherein R1 to R10 are herein as described.
Fused heterocyclic succinimide compounds and analogs thereof, modulators of nuclear hormone receptor function
申请人:——
公开号:US20040077605A1
公开(公告)日:2004-04-22
Fused cyclic compounds, methods of using such compounds in the treatment of nuclear hormone receptor-associated conditions such as cancer and immune disorders, and pharmaceutical compositions containing such compounds.
ISOQUINUCLIDINE DERIVATIVE AND METHOD FOR PRODUCING 1-CYCLOHEXENE-1-CARBOXYLIC ACID DERIVATIVE BY USING THE SAME
申请人:The University of Tokyo
公开号:EP2050752A1
公开(公告)日:2009-04-22
The present invention provides an isoquinuclidine derivative which can be used to easily synthesize oseltamivir or an analog thereof. In particular, the present invention provides an isoquinuclidine derivative represented by the following formula (1) or an enantiomer thereof:
wherein in the formula (1), A represents a protective group for the nitrogen atom; R1 to R1 each independently represent an alkyl group which may have a substituent, an aryl group which may have a substituent, or a hydrogen atom; and X represents a halogen atom.