• 제목/요약/키워드: S-chemistry

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Synthesis of Nuclophilic Adducts of Thiols (Ⅵ). Addition of L-Cystein to $\beta,\;\beta$-Diethoxycarbonylstyrene Derivatives

  • kim, Tae-Rin;Cho, Bong-Rae;Choi, Sung-Yong;Choi, Won-Sik
    • Bulletin of the Korean Chemical Society
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    • 제5권6호
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    • pp.215-218
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    • 1984
  • A series of S-(2,2-diethoxycarbonyl-1-phenylethyl)-L-cysteine derivatives (10a-e) were synthesized from the reaction of $\beta$$\beta$-diethoxycarbonylstyrene with L-cysteine in 1:1 aqueous methanol. Thus, S-(2,2-diethoxycarbonyl-1-phenylethyl)-L-cysteine( 10a), S-[2,2-diethoxycarbonyl-1-(3',4'-methylendioxy)ph enylethyl]-L-cysteine (10b), S-[2,2-diethoxycarbonyl-1-(3',4',5'-trimethoxy)phe nylethyl]-L-cyseine (10c), S-[2,2-diethoxycarbonyl-1-(p-hydroxy)phenylethyl] -L-cysteine (10d), S-[2,2-diethoxycarbonyl-1-(p-methoxy)phenylethyl] -L-cysteine (10e) were obtained in moderate to excellent yields. The structure of the adducts was characterized by analytical and spectral data. The effects of pH upon the product yields were also briefly examined.