The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 1979
Filed:
Mar. 31, 1978
Applicant:
Inventors:
Gerald L Bachman, St. Louis, MO (US);
Billy D Vineyard, St. Louis, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2601 / ;
Abstract
A process for the preparation of .alpha.-L-aspartyl-L-phenylalanine methyl ester wherein .alpha.-L-aspartyl-L-phenylalanine is contacted with a reaction medium comprising water, methanol and a hydrogen halide to form a solid hydrogen halide salt of .alpha.-L-aspartyl-L-phenylalanine methyl ester which can be separated and converted to .alpha.-L-aspartyl-L-phenylalanine methyl ester.