| 摘要 |
Tetrahydrofuranopyridines of the formula (I) and (II) and their acid-addn. salts. R1 = H, F, Cl, Br, 1-4C alkyl, 1-2C hydroxy-alkyl, (1-2C alkoxy)-(1-2C alkyl), pyrrolidinylmethyl or (1-2C alkyl) aminomethyl; R2 = H, OH, methoxy or ethoxy; R3, R4 independently = H, F, Cl, Br, methyl, ethyl, OH, methoxy, acetoxy or benzyloxy, or R3 and R4 together with the benzene ring are 3,4-benzodioxanyl; R5 = H, 1-4C alkyl, benzyl or ortho-chloro benzyl, but in (II), R2 is H and R1 is not hydroxyalkyl.
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