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:
Sep. 26, 1978
Filed:
Feb. 07, 1977
Applicant:
Inventors:
Raj Kumar Razdan, Belmont, MA (US);
Haldean Cloyce Dalzell, Weston, MA (US);
Assignee:
Sheehan Institute for Research, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603453 ;
Abstract
(-)-6A,10A-Trans-1-hydroxy-3-n-pentyl-6,6,9-trimethyl-6a,7,8,10a-tetrahydro dibenzo[b,d]pyran and related pyrans are prepared by a one-step process from (+)-p-mentha-2,8-dien-1-ol and substituted resorcinols. The pyrans produced by the process of this invention have useful pharmacological properties.