一系列的二肽的升-proline-升氨基磺酸和升-proline- d -氨基酸合成,以评估直接不对称醛醇缩合反应的催化效果。在直接的醛醇缩合反应中,1-脯氨酸-1-氨基酸的催化剂比相应的1-脯氨酸-d具有更好的对映选择性。-氨基酸催化剂。二肽催化剂在溶剂中的溶解度是获得更好的直接醛醇缩合反应产率的关键,而溶剂的氢键在获得更好的对映选择性和产率方面不发挥重要作用。NMM和SDS添加剂可提高水中直接羟醛反应的收率和对映选择性,但在普通DMSO中进行的结果甚至更好。
Fischer,E.; Luniak, Chemische Berichte, 1909, vol. 42, p. 4753
作者:Fischer,E.、Luniak
DOI:——
日期:——
US4371699A
申请人:——
公开号:US4371699A
公开(公告)日:1983-02-01
Solvatochromic Reagents for Multicomponent Reactions and their Utility in the Development of Cell-Permeable Macrocyclic Peptide Vectors
作者:Benjamin H. Rotstein、Rida Mourtada、Shana O. Kelley、Andrei K. Yudin
DOI:10.1002/chem.201102096
日期:2011.10.24
scaffolds: An isocyanide equipped with an environment‐sensitive fluorophore was used to synthesize peptide macrocycles. The photophysical properties of the product macrocycles are sensitive to both peptide sequence and configuration. A mitochondria‐penetrating peptide was constrained within a cyclic peptide framework and showed increased uptake and localization relative to a linear control (see scheme)
Synthesis of proline-derived dipeptides and their catalytic enantioselective direct aldol reactions: catalyst, solvent, additive and temperature effects
作者:Y.-H. Chen、P.-H. Sung、Kuangsen Sung
DOI:10.1007/s00726-009-0290-3
日期:2010.3
were synthesized to evaluate the catalytic effect for asymmetric direct aldolreactions. In the direct aldolreaction, a catalyst of l-proline-l-amino acid achieves better enantioselectivity than the corresponding l-proline-d-amino acid catalyst. Solubility of the dipeptide catalysts in the solvents is a key point for achieving a better yield of the direct aldolreaction, while hydrogen bonding of solvent
一系列的二肽的升-proline-升氨基磺酸和升-proline- d -氨基酸合成,以评估直接不对称醛醇缩合反应的催化效果。在直接的醛醇缩合反应中,1-脯氨酸-1-氨基酸的催化剂比相应的1-脯氨酸-d具有更好的对映选择性。-氨基酸催化剂。二肽催化剂在溶剂中的溶解度是获得更好的直接醛醇缩合反应产率的关键,而溶剂的氢键在获得更好的对映选择性和产率方面不发挥重要作用。NMM和SDS添加剂可提高水中直接羟醛反应的收率和对映选择性,但在普通DMSO中进行的结果甚至更好。