| 摘要 |
Disclosed is a compound of formula (I) wherein n is 1 or 2, X is O or S; and wherein the rest of the substituents are disclosed in the specification; or a pharmaceutically acceptable salt, ester, tautomer, solvate or amide thereof. Also disclosed is the use of a compound of formula (I) in the preparation of a medicament for inhibiting histamine H3 receptor activity. (62) Divided Out of 562813
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