o-phenetidine英美网络 邻氨基苯乙醚; 邻胺苯基乙基醚化学双语例句Study on catalytic hydrogenation for preparation of o-phenetidine催化加氢法制备邻氨基苯乙醚Synthesis of an alkylated product of O-Phenetidine邻氨基苯乙醚C&烷基化产物的合成