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. 16, 1980
Filed:
May. 29, 1979
Applicant:
Inventor:
Tadao Sato, Tokushima, JP;
Assignee:
Otsuka Pharmaceutical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
260974 ; 260936 ;
Abstract
Novel method optically active oxazaphosphorin derivatives represented by the general formula (I), ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are respectively different from each other and are hydrogen atom(s), lower alkyl group(s), aralkyl group(s), or aryl group(s); and X is a halogen atom. The novel oxazaphosphorin derivative is prepared by reacting an optically active amino alcohol derivative represented by the general formula (II), ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are the same as defined above, with a phosphorus compound represented by the general formula (III),