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. 28, 1994
Filed:
Apr. 13, 1990
Peter Sieber, Reinach, CH;
Bernhard Riniker, Frenkendorf, CH;
Novabiochem AG, Laufelfingen, CH;
Abstract
Compounds of the formula I, ##STR1## in which 'R.sub.1 is an amino protective group, and n stands for 1 or 2, R.sub.1 denotes hydrogen or an amino protective group, R.sub.2 denotes hydrogen or a carboxyl protective group and R.sub.3 denotes triphenylmethyl, 4-monomethoxy-trityl or 4,4'-dimethoxy-trityl, and reactive carboxylic acid derivatives of such compounds of the formula I in which R.sub.2 stands for hydrogen, are described. These compounds can be used as starting materials for the preparation of peptides. They are more suitable for this than are analogous compounds of the formula I in which R.sub.3 denotes hydrogen or one of the carbamoyl protective groups hitherto customary.