Usually used for the introduction of the TEOC-amino protecting group which can be cleaved by F-. Usually used for the introduction of the TEOC-amino protecting group which can be cleaved by F-. application： 4-Nitrophenyl 2-(trimethylsilyl)ethyl carbonate can be used as: A protecting group for an amine in one of the key synthetic steps of kottamide E total synthesis. A starting material to prepare a cis-butene derivative, which is used as a polymer terminating agent in the synthesis of monotelechelic glycopolymers.