174283-18-2Relevant academic research and scientific papers
Concise syntheses of racemic and enantiopure deoxydysibetaine
Le Nguyen, Bao Khanh,Langlois, Nicole
, p. 5961 - 5963 (2003)
Racemic deoxydysibetaine was efficiently obtained in few steps from methyl pyroglutamate. The 2S enantiomer was synthesized from (S)-pyroglutaminol as chiral starting material, through the key intermediate (S)-2-hydroxymethylglutamic acid recently prepare
Direct asymmetric intramolecular alkylation of β-alkoxy-α-amino esters via memory of chirality
Moriyama, Katsuhiko,Sakai, Hiroki,Kawabata, Takeo
supporting information; experimental part, p. 3883 - 3886 (2009/07/01)
(Chemical Equation Presented) The intramolecular α-alkylation of β-alkoxy-α-amino esters derived from L-serine proceeded predominantly over β-elimination. When β-alkoxy-α-amino esters were treated with powdered CsOH in DMSO at 20 °C, α-alkoxymethyl cyclic
Nitrone [2+3]-cycloadditions in stereocontrolled synthesis of a potent proteasome inhibitor: (-)-Omuralide
Legeay, Jean-Christophe,Langlois, Nicole
, p. 10108 - 10113 (2008/09/17)
(Chemical Equation Presented) A new stereocontrolled synthetic route to omuralide has been developed from methyl pyroglutamate. This route involves regio- and stereoselective N-methylnitrone 1,3-dipolar cycloadditions to appropriate pyrrolinones, β-eliminations, and highly selective hydrogenations as the main steps.
(R)-4-Hydroxymethyl-2-phenyl-4,5-dihydrooxazol-4-ylmethyl acetate: chiral building block for the synthesis of optically active α-substituted α-amino acid derivatives
Miyaoka, Hiroaki,Yamanishi, Makoto,Hoshino, Ayako,Kinbara, Atsushi
, p. 4103 - 4109 (2007/10/03)
(R)-4-Hydroxymethyl-2-phenyl-4,5-dihydrooxazol-4-ylmethyl acetate was efficiently obtained by lipase-catalyzed asymmetrization of the prochiral diol. (R)-4-Hydroxymethyl-2-phenyl-4,5-dihydrooxazol-4-ylmethyl acetate was converted to (R)-2-(hydroxymethyl)g
Diastereoselective syntheses of deoxydysibetaine, dysibetaine, and its 4-epimer
Langlois, Nicole,Le Nguyen, Bao K.
, p. 7558 - 7564 (2007/10/03)
(±)-Deoxydysibetaine 2 and 4-epi-dysibetaine 3 were prepared in a few steps from methyl pyroglutamate through a regioselective Mannich reaction at C-2. Natural (2S,4S)-dysibetaine 1, a sponge metabolite isolated from Dysidea herbacea, and (2S)-2 were synt
Convenient synthesis of enantiopure cyclic α-hydroxyalkyl α-amino esters
Andrews, Mark D.,Brewster, Andrew G.,Moloney, Mark G.,Owen, Karen L.
, p. 227 - 228 (2007/10/03)
The preparation of cyclic α-hydroxyalkyl α-amino esters, the ring size of which varies varies from 4 to 7 members, in enantiopure form is readily achieved by intramolecular alkylative cyclisation of oxazolidine precursors.
