 Aubé takes advantage of this rearrangement as the key step in his synthesis of ( + ) -yohimbine , a natural medicine classified by the NIH as possibly effective in the treatment of erectile dysfunction and the sexual problems caused by selective serotonin reuptake inhibitors . 
 Aubé <a href='uninflect' title='1'><mark>takes</mark></a> advantage of this rearrangement as the key step in his synthesis of ( + ) -yohimbine , a natural medicine classified by the NIH as possibly effective in the treatment of erectile dysfunction and the sexual problems caused by selective serotonin reuptake inhibitors . 
Aubé take advantage of dis rearrangement as da key step in his synthesis of ( + ) -yohimbine , a natural medicine classified by the NIH as possibly effective in tdatreatment of erectile dysfunction and thdaexual problems caused by selective serotonin reuptake inhibitors .