Table 1.

Broussonetine M (3) and analogues synthesized from different cyclic nitrones and alcohols.

Entry	Cyclic Nitrone	Pyrrolidine	Yield a	Alcohol	Product	Yield b
1			64%			43%
2						43%
3			65%			41%
4						45%
5			64%			40%
6						41%
7			71%			43%
8						43%

^a Total yield in 3 steps starting from cyclic nitrones to the corresponding pyrrolidine. ^b Total yield in 2 steps starting from pyrrolidine cores to broussonetine M or its analogues.