Sekisui Medical Co., Ltd.

Yuki Wakasugi

Shinya Yano

Yosuke Iwanaga

The purpose of the present invention is to provide a protecting group which improves the solubility of a compound having a functional group protected with the protecting group in an organic solvent and which is easily separated and purified after a reaction with avoiding solidification or insolubilization. Provided is a benzyl compound represented by Formula (1) where Xrepresents &#x2014;CHOR(where Rrepresents a hydrogen atom, a halogenocarbonyl group, or an active ester-type protecting group), &#x2014;CHNHR(where Rrepresents a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms, or an aralkyl group), a halogenomethyl group, a methyl azide group, a formyl group, or an oxime; and at least one of R, R, R, R, and Ris a group represented by Formula (2), and the remainders each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, where Rrepresents a linear or branched alkylene group having 1 to 16 carbon atoms; Xrepresents O or CONR(where Rrepresents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms); and A represents a group represented by Formula (3), (4), (5), (6), (7), (8), (9), (10), (11), (12), or (13).

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Iwate, Japan

Yuki Wakasugi