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    • 17. 发明授权
    • Fused piperidine substituted arylsulfonamides as .beta.3-agonists
    • 将哌啶取代的芳基磺酰胺作为β3-激动剂
    • US6043253A
    • 2000-03-28
    • US257707
    • 1999-02-25
    • Linda BrockunierAnn E. WeberEmma R. Parmee
    • Linda BrockunierAnn E. WeberEmma R. Parmee
    • C07D217/16C07D217/18C07D217/00A61K31/47
    • C07D217/18C07D217/16
    • Fused piperidine substituted arylsulfonamides are .beta..sub.3 adrenergic receptor agonists with very little .beta..sub.1 and .beta..sub.2 adrenergic receptor activity and as such the compounds are capable of increasing lipolysis and energy expenditure in cells. The compounds thus have potent activity in the treatment of Type II diabetes and obesity. The compounds can also be used to lower triglyceride levels and cholesterol levels or raise high density lipoprotein levels or to decrease gut motility. In addition, the compounds can be used to reduced neurogenic inflammation or as antidepressant agents. Compositions and methods for the use of the compounds in the treatment of diabetes and obesity and for lowering triglyceride levels and cholesterol levels or raising high density lipoprotein levels or for decreasing gut motility are also disclosed.
    • 融合的哌啶取代的芳基磺酰胺是具有非常少的β1和β2肾上腺素能受体活性的β3肾上腺素能受体激动剂,因此这些化合物能够增加细胞中的脂肪分解和能量消耗。 因此,这些化合物在治疗II型糖尿病和肥胖中具有有效的活性。 该化合物也可用于降低甘油三酯水平和胆固醇水平或提高高密度脂蛋白水平或降低肠道运动性。 此外,该化合物可用于减少神经源性炎症或作为抗抑郁剂。 还公开了使用该化合物治疗糖尿病和肥胖以及降低甘油三酯水平和胆固醇水平或提高高密度脂蛋白水平或降低肠蠕动的组合物和方法。
    • 20. 发明授权
    • Process for the preparation of racemic and optically active
1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid and its precursors
    • US5359074A
    • 1994-10-25
    • US76772
    • 1993-06-15
    • Bernhard KammermeierUlrich Lerch
    • Bernhard KammermeierUlrich Lerch
    • C07D217/26C07D217/20A61K31/47C07D217/18
    • C07D217/26
    • A process for the preparation of racemic and optically active 1,2.3,4-tetrahydroisoquinoline-3-carboxylic acid is described, in which dihalo-o-xylylenes are cyclized to dicarboxylic acid esters in basic medium using dialkyl N-acylamidomalonates of the formula (CO.sub.2 R.sup.1).sub.2 CHNHCOR.sup.2, in which R.sup.1 is (C.sub.1 -C.sub.4)-alkyl and R.sup.2 is H, (C.sub.1 -C.sub.4)-alkyl or (C.sub.6 -C.sub.12)-aryl, decarboxylated by basic hydrolysis and subsequent acid work-up and then reacted in acid medium to give (D,L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, or dihalo-o-xylylenes are cyclized in basic medium to give the dicarboxylic acid esters and these are reacted directly without isolation in a one-pot process to give (D,L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, if desired the racemic 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid is reacted with (-)menthol and p-toluenesulfonic acid to give (-)menthyl (D)- or (L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate, then the diastereomers are separated by column chromatography and subjected to basic hydrolysis to give (D)-or (L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, or (D,L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid is esterified by means of benzyl alcohol and p-toluenesulfonic acid, reacted with D(-)mandelic acid to give benzyl (D)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (D)-mandelate and benzyl (L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (D)-mandelate or with L(+)mandelic acid to give benzyl (D)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (L)-mandelate and benzyl (L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (L)-mandelate and then the compounds obtained are separated into the optical antipodes by fractional crystallization in an inert solvent and the enantiomers (D)- or (L)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid are liberated by basic hydrolysis, the chiral auxiliary reagent being recovered.