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:
Oct. 16, 1990
Filed:
Feb. 15, 1989
Applicant:
Inventors:
Mitchell A Avery, Palo Alto, CA (US);
Clive Jennings-White, Mountain View, CA (US);
Assignee:
SRI International, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 63 ; 549348 ; 549358 ; 549263 ; 549268 ; 549279 ; 549277 ; 549276 ; 549 15 ; 549 12 ; 549214 ; 540461 ; 540520 ; 556429 ; 556436 ;
Abstract
A process for synthesizing polyoxa tetracyclics which involves the ozonolysis of a single-ring-structure vinyl silane with resulting direct formation of the desired multiple ring matrial. The polyoxa tetracyclic compounds have the formula ##STR1## The vinyl silanes have the structure ##STR2## The vinyl silanes are new chemical compounds as are corresponding primary ozonide and dioxetane intermediates. In a preferred embodiment, this invention provides a total synthesis of the antimalarial artemisinin.