177763-02-9Relevant academic research and scientific papers
Enantioselective synthetic method for α-alkylserine via phase-transfer catalytic alkylation of 2-phenyl-2-oxazoline-4- carbonylcamphorsultam
Lee, Jihye,Lee, Yeon-Im,Kang, Myoung Joo,Lee, Yeon-Ju,Jeong, Byeong-Seon,Lee, Jeong-Hee,Kim, Mi-Jeong,Choi, Ji-Yeon,Ku, Jin-Mo,Park, Hyeung-Geun,Jew, Sang-Sup
, p. 4158 - 4161 (2007/10/03)
An enantioselective synthetic method for α-alkylserines by the phase-transfer catalytic alkylation of 2-phenyl-2-oxazoline-4- carbonylcamphorsultam (4a) was developed. The phase-transfer catalytic a-alkylation of 4a using P2-Et at -78 °C gave α-alkylation
An efficient strategy to orthogonally protected (R)- and (S)-α-methyl(alkyl)serine-containing peptides via a novel azlactone/oxazoline interconversion reaction
Obrecht, Daniel,Altorfer, Michael,Lehmann, Christian,Sch?nholzer, Peter,Müller, Klaus
, p. 4080 - 4086 (2007/10/03)
A novel strategy for the synthesis of (R)- and (S)-α-methyl(alkyl)serine-containing peptides is presented. Using (S)-phenylalanine cyclohexylamide 6 as chiral auxiliary, the optically pure azlactones (R)- and (S)-2 were synthesized via a novel azlactone/oxazoline interconversion reaction (Figures 3 and 6). These azlactones constitute fully protected and activated synthetic equivalents of (R)- and (S)-α-methylserine and can be directly incorporated into peptides without further protective group manipulations. Like other α,α-dialkylated glycines, optically pure α-alkylserines can be used to stabilize β-turn and α-helical conformations in short peptides.
