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(1991)trans-2-(2'-tosylaminocyclohexyloxy)acetic acid
trans-2-(2'-methylsulfonylaminocyclohexyloxy)acetic acid
trans-2-<2'-(N'-phenylthioureido)cyclohexyloxy>acetic acid
trans-2-<2'-(N'-phenylureido)cyclohexyloxy>acetic acid
trans-2-(2'-acetylaminocyclohexyloxy)acetic acid