Pyrimidine

　　Main Uses

　　Pharmaceutical Field:

　　Pyrimidine derivatives are important scaffolds in drug development, and many drugs contain pyrimidine ring structures, such as:

　　Anticancer drugs: Fluorouracil (5-FU) exerts anticancer effects by inhibiting nucleic acid synthesis;

　　Antiviral drugs: Acyclovir (a purine analog, but structurally related to pyrimidine), Lamivudine (anti-HIV and hepatitis B virus);

　　Antibacterial drugs: Sulfadiazine (broad-spectrum antibacterial, inhibits bacterial folate synthesis);

　　Antihypertensive drugs: Such as Nifedipine (calcium channel blocker, contains a pyrimidine-like structure).

　　Agrochemical Field:

　　Pyrimidine compounds are widely used as herbicides, insecticides, and fungicides, such as:

　　Herbicides: Nicosulfuron (inhibits plant amino acid synthesis);

　　Fungicides: Azoxystrobin (mitochondrial respiration inhibitor, broad-spectrum fungicide).

　　Organic Synthesis Intermediates:

　　Used to synthesize complex heterocyclic compounds (such as purines, pteridines, quinazolines, etc.), constructing diverse structures through functional group modification (e.g., introducing amino, hydroxyl, halogen groups at the 2, 4, and 5 positions) to expand application scenarios.

　　Materials Chemistry:

　　Polymers containing pyrimidine rings can be used to prepare optoelectronic materials (such as organic light-emitting diodes, OLEDs), utilizing their conjugated structures and electron transport properties.

CAS NO: 289-95-2;25247-63-6

EC NO: 206-026-0

Molecular Formula: C₄H₄N₂

Molecular Weight: 80.088

Aliases: ; m-Diazine; m-Diazabenzene;

Structural Formula: