Pyrrole and its derivatives react smoothly with acid chlorides and sulfonyl chlorides in the presence of zinc metal in toluene at ambient temperature to afford the corresponding 2-acetyl and 2-sulfonyl pyrrole derivatives in high yields with high regioselectivity.
N-(3-pyridylalkyl)sulfonamide derivative and pharmaceutical preparation containing thereof
申请人:TERUMO KABUSHIKI KAISHA
公开号:EP0501876A1
公开(公告)日:1992-09-02
Illustrative examples of the N-(3-pyridylalkyl)sulfonamide derivative are represented by the following formulae [II] and [III]:
The derivatives are available for a thromboxane A₂ production inhibitor, a thromboxane A₂ antagonist, a prostaglandin H₂ antagonist, an anti-thrombus agent, a thrombus-preventing agent and an anti-allergy agent.