合成类维生素A激动剂;Synthetic retinoid agonist;Fenretinide (4-HPR)是合成的维甲酸衍生物,能结合维甲酸受体(RAR)。;Fenretinide (4-HPR) is a synthetic retinoid deriverative. 4-HBR is shown to exhibit binding to the retinoic acid receptors (RAR) at concentrations necessary to induce cell death. An agonist displaying activity at retinoid receptors