122442-01-7Relevant articles and documents
A convenient chemoenzymatic synthesis of (R)-(-) and (S)-(+)-homo-β- proline
Felluga, Fulvia,Gombac, Valentina,Pitacco, Giuliana,Valentin, Ennio
, p. 3323 - 3327 (2007/10/03)
Both enantiomers of the heterocyclic GABA analogue homo-β-proline (3-pyrrolidineacetic acid) were synthesized by a chemoenzymatic method involving the use of two enantiocomplementary enzymes in the disymmetric hydrolyses of 3-nitromethylglutaric acid diethyl ester.
A practical ex-chiral-pool synthesis of β-proline and homo-β-proline
Thomas, Christoph,Orecher, Florian,Gmeiner, Peter
, p. 1491 - 1496 (2007/10/03)
Starting from aspartic acid an efficient synthesis of enantiomerically pure β-proline and homo-β-proline is described. The key step of the synthesis includes formation of the 1,4-biselectrophile 6, followed by rearrangement via the aziridinium intermediate 7 and ring closure to give the pyrrolidinium salt 9a which can serve as a common precursor for both target compounds.
Diastereomerically pure pyrrolidin-2-ones by intramolecular Michael reaction. Synthesis of both (S)- and (R)-3-pyrrolidineacetic acid
Galeazzi, Roberta,Geremia, Silvano,Mobbili, Giovanna,Orena, Mario
, p. 79 - 88 (2007/10/03)
By intramolecular conjugate addition of their derived enolates, the amides 5 and 6 gave diastereomeric mixtures of pyrrolidin-2-ones 10,11 and 12,13, in good yield and 80:20 d.r. After chromatographic separation, the configuration of pure diastereomers wa
A convenient approach to diastereomerically pure 1,3,4-trisubstituted pyrrolidin-2-ones by intramolecular cyclisation of N-(2-alken-1-yl)amides mediated by Mn(III). An entry to both (R)- and (S)-3-pyrrolidineacetic acid
Galeazzi, Roberta,Mobbili, Giovanna,Orena, Mario
, p. 1069 - 1084 (2007/10/03)
The oxidative cyclisation of a series of either (S)-N-(2-alken-1-yl)-N-(1-phenyleth-1-yl)-acetoacetamides 5a-d and methoxycarbonylacetamides 6a-b, performed by using Mn(OAc)3 · 2H2O and Cu(OAc)2 · H2O in acetic
GABA Agonists and Uptake Inhibitors. Synthesis, Absolute Stereochemistry, and Enantioselectivity of (R)-(-)- and (S)-(+)-Homo-β-proline
Nielsen, Lone,Brehm, Lotte,Krogsgaard-Larsen, Povl
, p. 71 - 77 (2007/10/02)
The cyclic analogue of 4-aminobutyric acid (GABA), 3-pyrrolidineacetic acid (homo-β-proline), is a potent agonist at GABAA receptors, it interacts effectively with GABA-uptake mechanisms, and it is a moderately potent inhibitor of GABAB/s