Versatile Access to Chiral Indolines by Catalytic Asymmetric Fischer Indolization
作者:Alberto Martínez、Matthew J. Webber、Steffen Müller、Benjamin List
DOI:10.1002/anie.201301618
日期:2013.9.2
for complexity: The chiral Brønsted acid (R)‐STRIP catalyzes the asymmetricFischerindolization of a range of monosubstituted cyclopentanones and cyclohexanones to give chiral fused indolines bearing a quaternary stereogenic center at the 3‐position. The method has been extended to include substrates bearing a tethered nucleophile, thus allowing for enantioselective indolization/ring‐closing cascades
Heterocyclic compounds of the formula: ##STR1## whereinR.sup.1 is carboxy or protected carboxy, R.sup.2 is aryl which may have suitable substituent(s), R.sup.3 is aryl which may have suitable substituent(s), A.sup.1 is lower alkylene, A.sup.2 is bond or lower alkylene and -Q- is ##STR2## etc., and pharmaceutically acceptable salts thereof which are useful as a medicament.
[EN] 4,5-DIARYLOXAZOLE DERIVATIVES<br/>[FR] DERIVES DE 4,5-DIARYLOXAZOLE
申请人:FUJISAWA PHARMACEUTICAL Co., LTD.
公开号:WO1995017393A1
公开(公告)日:1995-06-29
(EN) Heterocyclic compounds of formula (I) wherein R1 is carboxy or protected carboxy, R2 is aryl which may have suitable substituent(s), R3 is aryl which may have suitable substituent(s), A1 is lower alkylene, A2 is bond or lower alkylene and -Q- is (II), etc., and pharmaceutically acceptable salts thereof which are useful as a medicament.(FR) Composés hétérocycliques de formule (I) dans laquelle R1 représente carboxy ou carboxy protégé, R2 représente aryle à un ou plusieurs substituants appropriés, R3 représente aryle à un ou plusieurs substituants appropriés, A1 représente alkylène inférieur, A2 représente une liaison ou alkylène inférieur et -Q- représente un groupe (II), etc., et sels pharmaceutiquement acceptables desdits composés, qui sont utiles en tant que médicament.