Nitrogen-containing compound and preparation method thereof, and uses of nitrogen-containing compound as marine antifouling agent

The invention provides a nitrogen-containing compound and a preparation method thereof, and uses of the nitrogen-containing compound as a marine antifouling agent, and relates to an alkaloid compound,or a tautomer, a stereoisomer, a racemate, the non-equal mixture of enantiomers, a geometric isomer, a solvate, a pharmaceutically acceptable salt or a prodrug thereof, and a pharmaceutical composition containing the compound. The invention further discloses uses of the compounds and the pharmaceutical composition thereof as drugs, especially as anti-marine biofouling coating materials. 种含氮化合物及其制备方法和作为海洋防污剂的应用，本发明涉及种生物碱化合物,或其互变异构体、立体异构体、外消旋体、对映异构体的非等量混合物、几何异构体、溶剂化物、药学上可接受的盐或前药,以及包含该化合物的药物组合物。本发明还公开了这类化合物及其药物组合物作为药物,尤其是作为抗海洋生物污损涂料的用途。