摘要 |
Compounds of the formula (1) : …<CHEM>… and pharmaceutically acceptable acid addition salts are described wherein R is hydrogen, or C1-C6alkyl or C3-C5alkenyl; R<1> is SOR<3>, SO2R<3> or SO2NR<4>R<5>; R<2> is hydrogen, C1-C6alkyl or R<6>O-; R<3> is C1-C6alkyl or trifluoromethyl; R<4> and R<5> are hydrogen or C1-C6alkyl; and R<6> is hydrogen, C1-C6alkyl or C1-C6alkanoyl, provided that when R<1> is SO2NH2, R<2> is R<6>O- or C1-C6alkyl. These compounds are useful in the treatment of gastrointestinal motility disorders. Pharmaceutical compositions and methods of use are described. Intermediates and processes for the preparation of compounds of the formula (1) are described. |