The invention discloses a synthesis method of spirooxindole, Cauhinin and
yohimbine alkaloids and derivatives thereof. Belongs to the field of pharmaceutical chemicals. The invention relates to intermediate compounds for preparing
indole alkaloid, a synthesis method of the intermediate compounds, and a method for synthesizing spiro-oxoindole
alkaloid and derivatives of the spiro-oxoindole
alkaloid by utilizing the intermediate compounds based on intramolecular
dehydrogenation coupling reaction. The invention also relates to a synthesis method of the Cauhinine and
yohimbine alkaloids and the derivatives thereof. The synthesis method has high functional group compatibility and broad-spectrum substrate universality, raw materials can be prepared in a large scale, reagents are low in price and easy to obtain, operation is easy, steps are short, and important popularization potential and application value are achieved.