METHOD FOR REACTING 2-AROMATIC SUBSTITUTED 1,3-DITHIANES WITH .alpha..beta.-UNSATURATED KETONES TO SELECTIVELY PRODUCE 1,4-OR 1,2-ADDITION PRODUCTS AND THE PRODUCTS MADE THEREBY
CA 1114388 A · Owner: Ortho Pharmaceutical Corporation · Inventors: Kane, Vinayak V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
METHOD FOR REACTING 2-AROMATIC SUBSTITUTED 1,3-DITHIANES WITH .alpha..beta.-UNSATURATED KETONES TO SELECTIVELY PRODUCE 1,4- OR 1,2-ADDITION PRODUCTS AND THE PRODUCTS MADE THEREBY Abstract, Method for reacting a 2-aromatic substituted 1,3-dithiane with an .alpha..beta.-unsaturated ketone to selectively produce either the 1,4-addition product or the 1,2-addition product and the products made thereby. The 1,2- and 1,4-addition products possess cardiovascular activity, particularly antihypertensive and antiarrythmic activity.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.