The Study of Several Synthesis Methods of Indolizidine (±)-209I and (±)-209B as Natural Alkaloids

Natural products have received much attention due to their importance and application. Indolizidine, categorized as an alkaloid, has several biological activities. The synthesis of natural compounds such as indolizidines has attracted much attention from many chemists’ and researchers’ perspectives. There are many areas to be explored in this subject; that is why synthesizing indolizidine 209I and (±)-indolizidine 209B as natural compounds have received much consideration. This review discloses the procedures and methodology to provide (±)-indolizidine 209I and 209B due to the importance of indolizidines.