Patents by Inventor Pavel I. Pozdnyakov

Pavel I. Pozdnyakov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • N&agr;-2-(4-nitrophenylsulfonyl)ethoxycarbonyl-amino acids
    Patent number: 6265590
    Abstract: Protected amino acid derivatives of general formula (I) and methods for the prepatation of the derivatives are provided.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: July 24, 2001
    Assignee: Hyundai Pharm, Ind. Co., Ltd.
    Inventors: Vladimir V. Samukov, Aydar N. Sabirov, Pavel I. Pozdnyakov, Hack-Joo Kim, Young-Deug Kim
  • N.sub..alpha. -2-(4-Nitrophenylsulfonyl) ethoxycarbonyl-amino acids
    Patent number: 5616788
    Abstract: Protected amino acid derivatives of the general formula ##STR1## wherein R.sub.1 represents hydrogen atom, and R.sub.2 represents hydrogen, methyl, isopropyl, 1-methylpropyl, 2-methylpropyl, tert-butoxymethyl, 1-tert-butoxyethyl, 2-methylthioethyl, benzyl, carboxamidomethyl, 2-carboxamidoethyl, tert-butoxycarbonylmethyl, 2-(tert-butoxycarbonyl)ethyl, 4-(tert-butoxycarbamido)butyl, 4-tert-butoxybenzyl, indolyl-3-methyl, S-(triphenylmethyl)thiomethyl, 1-(triphenylmethyl)imidazolyl-4-methyl, 3-(N.sup.G -mesitylenesulfonyl)guanidinopropyl, N-xanthylcarboxamidomethyl, 2-(N-xanthylcarboxamido)ethyl or S-(acetamidomethyl)thiomethyl; or R.sub.1 and R.sub.2 together represent propylene radical. Methods for the preparation of said derivatives are provided, and a process for solid phase peptide synthesis using said derivatives is described.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: April 1, 1997
    Assignee: Hyundai Pharm. Ind. Co., Ltd.
    Inventors: Vladimir V. Samukov, Aydar N. Sabirov, Pavel I. Pozdnyakov