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:
Aug. 03, 1982
Filed:
Apr. 27, 1981
Applicant:
Inventors:
Fumio Sakamoto, Osaka, JP;
Shoji Ikeda, Ibaraki, JP;
Goro Tsukamoto, Toyonaka, JP;
Isamu Utsumi, Kyoto, JP;
Assignee:
Kanebo Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
549229 ; 2602391 ;
Abstract
A 1,3-dioxolen-2-one derivative of the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom, a methyl group, or an aryl group, R.sub.2 represents a hydrogen atom, or may be taken together with R.sub.1 to form a divalent carbon chain residue, and x represents a halogen atom. The above compounds can be prepared by reacting a compound of the general formula ##STR2## with a halogenating agent, and are useful as protective group-introducing reagents for introducing protective groups into reagents in various chemical reactions, or as modifiers for prodrug preparation in medicine.