Sulfonyl benzofurans and benzothiophenes having coronary vasodilator
申请人:SmithKline Corporation
公开号:US04117128A1
公开(公告)日:1978-09-26
The compounds are sulfonyl benzofurans and benzothiophenes having pharmacological activity, in particular, coronary vasodilator activity useful for the treatment of angina pectoris.
这些化合物是具有药理活性的磺酰基苯并呋喃和苯并噻吩,特别是对治疗心绞痛有用的冠状血管扩张剂活性。
Pd‐Catalyzed Annulation of β‐Iodovinyl Sulfones with 2‐Halophenols: A General Route for the Synthesis of 3‐Sulfonyl Benzofuran Derivatives
The palladium‐catalyzed annulation between β‐iodovinyl sulfones and 2‐halophenols or 1‐bromo‐2‐naphthol or 2‐bromo‐3‐pyridinol is presented. The annulation process involving oxa‐Michael addition‐elimination and intramolecular Heck reaction leading to form 2,3‐disubstituted benzofurans (aryl benzofuryl sulfones) in good to high yields. The regioselective tandem construction of C−O and C−C bonds has