Preventive/remedy for retinal nerve diseases containing alkyl ether derivatives or salts thereof

Abstract From the Canadian patent

An alkyl ether derivative represented by the following general formula 1, (see formula 1) or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore is , useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy retinal artery obstruction, retinal venous obstruction macular degeneration and retinopathy of prematurity.