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Impact of D2O on peptidization of l-Cysteine. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1469-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sajewicz M, Gontarska M, Kronenbach D, Berry E, Kowalska T. Condensation oscillations in the condensation of mandelic acid. ACTA CHROMATOGR 2012. [DOI: 10.1556/achrom.24.2012.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sajewicz M, Gontarska M, Kronenbach D, Berry E, Kowalska T. An HPLC-DAD and LC-MS Study of Condensation Oscillations with S(+)-Ketoprofen Dissolved in Acetonitrile. J Chromatogr Sci 2012; 50:237-44. [DOI: 10.1093/chromsci/bmr051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Sajewicz M, Matlengiewicz M, Leda M, Gontarska M, Kronenbach D, Kowalska T, Epstein IR. Spontaneous oscillatory in vitro chiral conversion of simple carboxylic acids and its possible mechanism. J PHYS ORG CHEM 2010. [DOI: 10.1002/poc.1739] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sajewicz M, Gontarska M, Kronenbach D, Leda M, Kowalska T, Epstein IR. Condensation oscillations in the peptidization of phenylglycine. ACTA ACUST UNITED AC 2010. [DOI: 10.1186/1759-2208-1-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
In earlier studies, we showed that certain low-molecular-weight carboxylic acids (profens, amino acids, hydroxy acids) can undergo spontaneous in vitro chiral conversion accompanied by condensation to from oligomers, and we proposed two simple models to describe these processes. Here, we present the results of investigations using non-chiral high-performance liquid chromatography with diode array detector (HPLC-DAD) and mass spectrometry (MS) on the dynamics of peptidization of S-, R-, and rac-phenylglycine dissolved in 70% aqueous ethanol and stored for times up to one year. The experimental results demonstrate that peptidization of phenylglycine can occur in an oscillatory fashion. We also describe, and carry out simulations with, three models that capture key aspects of the oscillatory condensation and chiral conversion processes.
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