**2. Alkaloids constituents from** *Zanthoxylum* **genus**

A total of 35 *Zanthoxylum* species have been studied and showed the presence of alkaloids: *Z. acanthopodium*, *Z. ailanthoides*, *Z. americanum*, *Z. arborescens*, *Z. atchoum*, *Z. austrosinense*, *Z. avicennae*, *Z. bouetense*, *Z. budrunga*, *Z. bungeanum*, *Z. caribaeum*, *Z. chiloperone*, *Z. clava-herculis*, *Z. colantrillo*, *Z. coriaceum*, *Z. culantrillo*, *Z. cuspidatum*, *Z. dimoncillo*, *Z. fagara*, *Z. integrifoliolum*, *Z. lemairei*, *Z. monophyllum*, *Z. myriacanthum*, *Z. nitidum*, *Z. ovalfolium*, *Z. paracanthum*, *Z. procerom*, *Z. rhoifolium*, *Z. riedelianum*, *Z. rubescens*, *Z. schinifolium*, *Z. simulans*, *Z. tingoassuiba*, *Z. usambarense*, and *Z. williamsii*.
