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:
Dec. 19, 1989
Filed:
Apr. 30, 1987
Applicant:
Inventor:
Derek Hudson, San Anselmo, CA (US);
Assignee:
Millipore Corporation, Bedford, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07K / ;
U.S. Cl.
CPC ...
525 5411 ; 530333 ; 530334 ;
Abstract
A novel method of activation of a protected amino acid using Benzotriazolyloxytris(dimethylamino)phosphonium Hexafluorophosphate (BOP) as an activator for solid phase peptide synthesis is provided. Hydroxybenzotriazole is included in preferred embodiments. An intermediate acyloxyphosphonium salt is formed from the protected amino acid and the BOP which immediately reacts with HOBt to form an ester without formation of the less reactive symmetrical anhydride. A tertiary or quaternary substituted nitrogen compound must be used to produce a carboxylate of the protected amino acids as it also functions to increase their solubility.