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.:

US 6737541 B1

PDF
Full Text
Expired
Date of Patent:
May. 18, 2004

Filed:

Nov. 19, 2002
Applicant:
Inventors:

Paul Stanislaw Siedlecki, Macclesfield, GB;

David Michael Glanville Martin, Macclesfield, GB;

Assignee:

AstraZeneca AB, Sodertalje, SE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract

This invention relates to an improved synthesis of 5-(N-[(S)-N-{N,N-bis( 2-chloroethyl)amino}phenoxycarbonyl)-&ggr;-glutamyl]amino)isophthalic acid (also named ZD9063P), a prodrug used in Antibody Directed Enzyme Prodrug Therapy (ADEPT), a targeted cytotoxic cancer therapy. Another aspect of the invention comprises a compound of Formula (I) in which R and R are chloro, R is an alphamethylbenzylamine salt of carboxylic acid, (R ) represents a benzyl protected 3,5-dicarboxylic acid and the asterisked chiral carbon in Formula (I) has S configuration, preferably in crystalline form.


Find Patent Forward Citations

Siedlecki, Paul. (2004). Preparation of nitrogen mustard derivatives (U.S. Patent No. 6737541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6737541

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