For synthesizing these compounds, the technique of phase transfer catalysis was successfully applied in the N-alkylation of oxindoles and the carbamylation of 5-hydroxyindolines.

• 在这些化合物的合成过程中,成功地应用了相转移催化反应于2-二氢吲哚酮的N-烷化及5-羟基-二氢吲哚的胺甲酰化。