Patents Assigned to The Nutrasweet Co.
  • Synthesis of N-[N-(3,3-dimethylbutyl)-L-?-aspartyl]-L-phenylalanine 1-methyl ester using oxazolidinone derivatives
    Patent number: 6852875
    Abstract: Synthesis of N-[N-(3,3-dimethylbutyl)-L-?-aspartyl]-L-phenylalanine 1-methyl ester by treating N-(3,3-dimethylbutyl)-L-aspartic acid with ketones to give oxazolidinone derivatives, which are condensed with L-phenylalanine methyl ester.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: February 8, 2005
    Assignee: The Nutrasweet Co.
    Inventor: Indra Prakash
  • Amorphous N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester
    Patent number: 6331646
    Abstract: A novel amorphous N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester compound is disclosed. Also disclosed are processes for preparing the compound. The novel compound has improved solubility and dissolution properties compared to the known monohydrate.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: December 18, 2001
    Assignee: The NutraSweet Co.
    Inventors: Steve A. Schroeder, Run Wang