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:
Jun. 17, 1997
Filed:
Sep. 13, 1994
Lajos Nagy, Fuzfogyartelep, HU;
Jeno Pelyva, Fuzfogyartelep, HU;
Pal Agocs, Veszprem, HU;
Csaba Soptei, Veszprem, HU;
Judit Benczik nee Pasztor, Balatonalmadi, HU;
Zoltan Kolonics, Veszprem, HU;
Sandor Balint, Balatonalmadi, HU;
Dezso Sebok, Veszprem, HU;
Jolan Cseke, Veszprem, HU;
Tibor Kranitz, Balatonalmadi, HU;
Laszlo Legradi, Fuzfogyartelep, HU;
Nitrokemia Ipartelepek, , HU;
Abstract
Process for the preparation of N-phenyl-N-methoxyacetyl-DL-alanine methyl ester derivatives of the formula (I). ##STR1## wherein R is a C.sub.1-4 alkyl residue; and n is a cardinal number between from 1 to 3, which comprises reacting an N-methoxyacetyl derivative of the formula (II). ##STR2## wherein R and n are as defined above, with a stoichiometric amount of an alkaline metal alkoxide, at a temperature between 80.degree. C. and 150.degree. C., until completion of the removal of the alkanol present in the system, then reacting the thus obtained alkaline metal salt of the compound of formula (II) directly or after isolation with a methyl DL-x-halopropionate.