| 摘要 |
<p>Alkyl ether derivatives represented by general formula (1) or salts thereof, which are useful as excellent calcium antagonists, wherein R1 represents optionally substituted aryl or heterocycle; R2 represents hydrogen or hydroxy; R3 represents (a) (wherein R4 represents optionally substituted cyclic amino; and R5 represents optionally substituted alkyl, or R?4 and R5¿ may form together with the nitrogen atom to which they are bonded optionally substituted cyclic amino), or a nitrogen-containing saturated 6-membered ring having a bond from a carbon atom in the ring; m is an integer of 1 to 5; and n is an integer of 2 to 6.</p> |
