A compound represented by the following formula (1), a pharmaceutically acceptable salt thereof or an optically active form thereof:
wherein each symbol is as defined in the specification. A compound having a calcium-sensing receptor antagonistic action, a pharmaceutical composition comprising the compound, particularly a calcium receptor antagonist and a therapeutic drug for osteoporosis are provided.
A compound represented by the following formula (1), a pharmaceutically acceptable salt thereof or an optically active form thereof:
wherein each symbol is as defined in the specification. A compound having a calcium-sensing receptor antagonistic action, a pharmaceutical composition comprising the compound, particularly a calcium receptor antagonist and a therapeutic drug for osteoporosis are provided.
A compound represented by the following formula (1), a pharmaceutically acceptable salt thereof or an optically active form thereof:
wherein each symbol is as defined in the specification. A compound having a calcium-sensing receptor antagonistic action, a pharmaceutical composition comprising the compound, particularly a calcium receptor antagonist and a therapeutic drug for osteoporosis are provided.