Enantioselective Direct Mannich-Type Reactions Catalyzed by Frustrated Lewis Acid/Brønsted Base Complexes
作者:Ming Shang、Min Cao、Qifan Wang、Masayuki Wasa
DOI:10.1002/anie.201708103
日期:2017.10.16
An enantioselective direct Mannich‐type reaction catalyzed by a sterically frustrated Lewis acid/Brønsted base complex is disclosed. Cooperative functioning of the chiralLewis acid and achiral Brønsted base components gives rise to in situ enolate generation from monocarbonyl compounds. Subsequent reaction with hydrogen‐bond‐activated aldimines delivers β‐aminocarbonyl compounds with high enantiomeric
CANNEY, DANIEL J.;HOLLAND, KATHERINE D.;LEVINE, JEFFREY A.;MCKEON, ANN C.+, J. MED. CHEM., 34,(1991) N, C. 1460-1467
作者:CANNEY, DANIEL J.、HOLLAND, KATHERINE D.、LEVINE, JEFFREY A.、MCKEON, ANN C.+
DOI:——
日期:——
GORSKI R. A.; WOLBER G. J.; WEMPLE J., TETRAHEDRON LETT. <TELE-AY>, 1976, NO 30, 2577-2580
作者:GORSKI R. A.、 WOLBER G. J.、 WEMPLE J.
DOI:——
日期:——
Synthesis and structure-activity studies of alkyl-substituted .gamma.-butyrolactones and .gamma.-thiobutyrolactones: ligands for the picrotoxin receptor
作者:Daniel J. Canney、Katherine D. Holland、Jeffrey A. Levine、Ann C. McKeon、James A. Ferrendelli、Douglas F. Covey
DOI:10.1021/jm00108a034
日期:1991.4
alpha-substituted anticonvulsant to become a convulsant. In general, sulfur for oxygen heteroatom substitution in the alpha-substituted lactones resulted in improved anticonvulsant potency and spectrum of activity. Binding of these compounds to the picrotoxin site of the GABA receptor complex was demonstrated with a [35S]-tert-butylbicyclophosphorothionate radioligandbindingassay. Measurements of