3-(Boc-amino)propyl bromide is a versatile building block used in the synthesis of various pharmaceutical and biologically active compounds. It has been shown to be utilized in the synthesis of an active anti-HIV ethidium-arginine conjμgate targeted against the viral TAR RNA sequence.A versatile building block. 3-(Boc-amino)propyl bromide is a versatile building block used in the synthesis of various pharmaceutical and biologically active compounds. It has been shown to be utilized in the synthesis of an active anti-HIV ethidium-arginine conjugate targeted against the viral TAR RNA sequence. A versatile building block.