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US 5,401,850 AGranted
Cyclopropachromen derivatives
AssigneeSuntory Limited
InventorsToshio Tatsuoka, Kayoko Nomura, Yuzo Nakagawa, Shizuo Nakamura
Life of this patent
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Abstract
A cyclopropachromen derivative represented by formula (I): ##STR1## The compounds are capable of promoting the extension of nerve dendrites and are useful as improving and treating agents for cerebral organic disorders and psychic function disorders.
Claims7
A cyclopropachromen represented by formula (I):
- ##STR44## wherein n represents an integer of 2 to 5;
- one of R.sup.1 and R.sup.2 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, a phenyl group or an aralkyl group having 7 to 10 carbon atoms, and the other of R.sup.1 and R.sup.2 represents an alkyl group having 1 to 5 carbon atoms, a phenyl group or an aralkyl group having 7 to 10 carbon atoms,
- A.sup.1 and A.sup.2 independently represent a hydroxyl group, a halogen atom, an alkoxy group having 1 to 10 carbon atoms or an alkoxy group having 1 to 10 carbon atoms substituted with phenyl or pyridyl;
- B.sup.1 and B.sup.2 independently represent a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxy group having 1 to 10 carbon atoms or an alkoxy group having 1 to 10 carbon atoms substituted with phenyl or pyridyl, and a pharmaceutically acceptable salt thereof.
1 more element
Dependencies are inferred from the claim text.