Are there any unusual synthetic simple drugs?

No simple and unusual drugs were synthesized. Synthetic drugs are drugs made by chemical synthesis or biosynthesis. Chemical synthesis includes organic synthesis and inorganic synthesis. Biosynthesis includes total biosynthesis, partial biosynthesis and partial chemical synthesis. Drug synthesis plays an extremely important role in pharmaceutical industry. Synthetic drugs are widely used in medical practice. Some synthetic drugs are similar in structure to natural drugs, but not exactly the same. For example, Euquinine is similar to quinine, but not exactly the same. Some synthetic drugs have nothing to do with natural drugs, such as aspirin and furacilin.