6-ketoprostaglandin F1α

Prostaglandin is a group of unsaturated fatty acids consisting of 20 carbon atoms. It was first discovered in semen, so it is called prostaglandin (PG). PG consists of a five-carbon ring structure and two side chains. Its structure is divided into A, B, C, D, E, F, G, H, I and other types. The Arabic numerals in the lower right corner of the letter indicate the number of double bonds contained in the side chain of the PG molecule, such as PGE1 and PGE2. Where the substituents on the five-carbon ring of PG are below the ring plane, they are marked with & alpha ;, such as PGF1 & alpha ;, if they are above the ring plane, they are marked with & beta ;, such as PGF2 & beta ;. Different types of PG have different biological effects. PGE1, PGE2, PGF2 & alpha ;, PGA2, PGI2, TXA2, and TXB2 have been studied more. Among them, prostacyclin (PGI2) and thromboxane (TXA2) are the most widely studied.