| abstract |
Compounds represented by general formula (I) and salts thereof, wherein each symbol is as defined in the specification. Because of inhibiting the N type calcium channel, the compounds of general formula (I) are useful as preventives and/or remedies for brain infarction, transient ischemic attack, cerebrospinal failure following heart operation, spinal vascular failure, stress hypertension, neurosis, epilepsy, asthma, frequent urination, etc. or analgesics. |