申请人:MERRELL PHARMACEUTICALS INC.
公开号:EP0550337A1
公开(公告)日:1993-07-07
This invention relates to alkylated sulfonium alkylene derivatives of certain 2H-1-benzopyrans, of the formula
the (R) and (S) enantiomers and racemic mixtures thereof, and the pharmaceutically acceptable salts thereof wherein
Qis S⊕R₁R₂·X⊖,
Xis a halide or OS (O)₂R₃, with R₃ being H, C1-6 alkyl, CF₃, aryl or aralkyl,
R₁is C1-6 lower alkyl, phenyl, benzyl or phenethyl,
R₂is C1-6 alkyl, and R₁ and R₂ are a C4- to C₆ alkylene which, togehter with the sulfur atom to which they are attached, form a 5-, 6- or 7-membered ring,
R₅is H or C1-6 alkyl,
R₆is H or -C(O)R, R beihg H or C1-9 alkyl,
R₇is H or C1-6 alkyl,
R₈is H or C1-6 alkyl and n is an integer of 1 to 6,
to the intermediates and processes useful for their preparation, to their free-radical scavenger and cardioprotective properties and to their and-use application as therapeutic agents.
本发明涉及某些 2H-1-苯并吡喃的烷基化锍亚烷基衍生物,其式为
(R)和(S)对映体及其外消旋混合物,以及它们的药学上可接受的盐,其中
Q是S⊕R₁R₂-X⊖、
X 是卤化物或 OS (O)₂R₃,其中 R₃ 是 H、C1-6 烷基、CF₃、芳基或芳烷基、
R₁ 是 C1-6 低级烷基、苯基、苄基或苯乙基、
R₂ 是 C1-6 烷基,R₁ 和 R₂ 是 C4 至 C₆亚烷基,它们与所连接的硫原子一起形成 5、6 或 7 元环、
R₅ 是 H 或 C1-6 烷基、
R₆ 是 H 或-C(O)R,R 是 H 或 C1-9 烷基、
R₇ 是 H 或 C1-6 烷基、
R₈ 是 H 或 C1-6 烷基,n 是 1-6 的整数、
制备它们的中间体和工艺,它们的自由基清除剂和心脏保护特性,以及它们作为治疗剂的应用。