Benzylidene azolidine derivative or salt thereof

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United States of America Patent

PATENT NO 9422246
APP PUB NO 20150065728A1
SERIAL NO

14389139

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Abstract

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A novel compound which has excellent ultraviolet-absorbing function (especially UVA absorbing function) and excellent hydrophilicity. A benzylidene azolidine derivative represented by structural formula (I) or a salt thereof. In structural formula (I), n represents an integer of 1-5; A1 represents O, S or N-A4; and each of A2, A3 and A4 independently represents a hydrogen atom, an alkyl group which may be substituted by a hydroxyl group and has 1-8 carbon atoms, or the like (provided that at least one of A2, A3 and A4 contains one or more hydroxyl groups). In this connection, when n is an integer of 2-5, the plurality of A3O— moieties may be the same as or different.

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Patent Owner(s)

Patent OwnerAddress
ROHTO PHARMACEUTICAL CO LTDOSAKA JAPAN OSAKA-SHI OSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimizu, Takashi Osaka, JP 409 3170

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