The synthesis of p-xylylenedihydrazine

Zapevalova, N. P.; Martyakova, N. I.; Chizhenko, D. L.; Соколова, Т. А.

doi:10.1007/bf00908187

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Synthesis Of Z-ala-gly-phe-leuoh1

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1990

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“…Gly-Phe-Leu (0.07 ~) ( 8 ) was dissolved in an equimolar quantity of 1 M KOH. 1 M K,HPO,, Z-AlaSK ( 0 .…”

Section: Synthesis Of Z-ala-gly-phe-leuohmentioning

confidence: 99%

Thio‐α‐amino acids (S‐acids) as a carboxyl component in peptide synthesis catalysed by papain

Mitin¹,

Zapevalova²

1990

International Journal of Peptide and Protein Research

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Peptide synthesis catalysed by papain was studied using thio‐α‐amino acids (S‐acids) as a carboxyl component. It was found, for example, that with Z‐AlaSH (pK 2.70) the maximal yield of the peptide Z‐AlaValNH2 was obtained at pH 8–8.5. A two‐fold excess of Z‐AlaSH furnished peptides with yields close to 100%. Thio‐amino acids with bulky side groups, for example, Z‐IleSH, Z‐Asp(OBut)SH, gave peptides with a low yield. Papain interacts with Z‐AlaSH better than do bromelain or ficin.

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“…Gly-Phe-Leu (0.07 ~) ( 8 ) was dissolved in an equimolar quantity of 1 M KOH. 1 M K,HPO,, Z-AlaSK ( 0 .…”

Section: Synthesis Of Z-ala-gly-phe-leuohmentioning

confidence: 99%