| 摘要 |
<p>Preparation of quaternized scopine 2,2-di-(hetero)arylalkanoic acid esters (I) involves single-stage reaction of a quaternized scopine compound (II) with a di-(hetero)aryl-alkanoic acid (or activated ester) derivative (III). Preparation of quaternized scopine esters of formula (I) involves single-stage reaction of a quaternized scopine compound of formula (II) with a diaryl-alkanoic acid derivative of formula RC(O)C(Ar) 2R 1> (III). [Image] X, Y : Cl, Br, I, MeSO 3 or CF 3SO 3; R 1>OH, 1-4C alkyl, 1-4C alkoxy, CF 3 or F; Ar : phenyl, naphthyl, thienyl or furyl (all optionally substituted by 1-2 1-4C alkyl, 1-4C alkoxy, OH, F, Cl, Br or CF 3); and R : OH, OMe, OEt, O-N-succinimidyl, O-N-phthalimidyl, nitrophenoxy, fluorophenoxy, pentafluorophenoxy, vinyloxy, 2-allyloxy, SMe, SEt or SPh. An independent claim is also included for the use of (II) as starting materials for the production of (I). ACTIVITY : Antiasthmatic; Antiinflammatory. MECHANISM OF ACTION : Anticholinergic.</p> |
