Patents by Inventor Sterling R. Putt

Sterling R. Putt 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).

  • Imidazole compounds, methods for their production and conversion of said compounds into (R)-3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-3,6,7,8-tetrahydroimidaz ol[4,5-d][1,3]diazepin-8-ol
    Patent number: 4195176
    Abstract: 2-Amino-1-(5-amino-1H-imidazol-4-yl)ethanone, 6,7-dihydroimidazo[4,5-d][1,3]diazepin-8(3H)-one and acid-addition salts thereof are disclosed. 2-Amino-1-(5-amino-1H-imidazol-4-yl)ethanone and its acid-addition salts are prepared by catalytically reducing an acid-addition salt of 2-amino-1-[5-amino-1-(protected)-1H-imidazol-4-yl]ethanone. 6,7-Dihydroimidazo[4,5-d][1,3]diazepin-8(3H)-one and its acid-addition salts are prepared by reacting an acid-addition salt of 2-amino-1-(5-amino-1H-imidazol-4-yl)ethanone with a compound able to contribute a formyl group. The later product may subsequently be converted into (R)-3-(2-deoxy-.beta.-D-erythropentofuranosyl)-3,6,7,8-tetrahydroimidazo[4 ,5-d][1,3]diazepin-8-ol. Furanose derivatives of 6,7-dihydroimidazo[4,5-d][1,3]diazepine are also disclosed and their methods of preparation. Lastly, a method for resolving an isomer mixture of 3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-3,6,7,8-tetrahydroimidazo[4 ,5-d][1,3]diazepin-8-ol compounds is related.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: March 25, 1980
    Assignee: Warner-Lambert Company
    Inventors: David C. Baker, Sterling R. Putt
  • 2-Amino-1-(5-amino-1H-imidazol-4-yl)ethanone and method of preparation
    Patent number: 4117229
    Abstract: 2-Amino-1-(5-amino-1H-imidazol-4-yl)ethanone, 6,7-dihydroimidazo[4,5-d][1,3]diazepin-8(3H)-one and acid-addition salts thereof are disclosed. 2-Amino-1-(5-amino-1H-imidazol-4-yl)ethanone and its acid-addition salts are prepared by catalytically reducing an acid-addition salt of 2-amino-1-[5-amino-1-(protected)-1H-imidazol-4-yl]ethanone. 6,7-Dihydroimidazo[4,5-d][1,3]-diazepin-8(3H)-one and its acid-addition salts are prepared by reacting an acid-addition salt of 2-amino-1-(5-amino-1H-imidazol-4-yl)ethanone with a compound able to contribute a formyl group. The later product may subsequently be converted into (R)-3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-3,6,7,8-tetrahydroimidazo[ 4,5-d][1,3]diazepin-8-ol. Furanose derivatives of 6,7-dihydroimidazo[4,5-d][1,3]diazepine are also disclosed and their methods of preparation. Lastly, a method for resolving an isomer mixture of 3-(2-deoxy-.beta.-D-erythro-pentafuranosyl)-3,6,7,8-tetrahydroimidazo[4 ,5-d][1,3]diazepin-8-ol compounds is related.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: September 26, 1978
    Assignee: Warner-Lambert Company
    Inventors: David C. Baker, Sterling R. Putt