4-Aminoquinoline is a form of aminoquinoline with the amino group at the 4-position of the quinoline. The compound has been used as a precursor for the synthesis of its derivatives. A variety of derivatives of 4-aminoquinoline are antimalarial agents useful in treating erythrocytic plasmodial infections. Examples include amodiaquine, chloroquine, and hydroxychloroquine. Other uses for the derivatives are: anti-asthmatic, antibacterial, anti-fungal, anti-malarial, antiviral and anti-inflammatory agents. A patent application for 4-aminoquinoline compounds was filed in 2002 and published in 2005.