THE CHEMISTRY OF COFFEE 



163 



CixHieO^N^ 



C8H10O2N4 



C.H,.O.N 



C34H45O11N 



(acetylbenzoxyl- 

 aconine) 



C^Hs.CH.CH.CH^.C.NCCH^) 



\ 



\ 



CO CH2 



\/ 



o 



Pilocarpine 

 CH3.N CO 



CO 



CH— N 



)CH 



CH..N 



N(CH3) 

 )CH 



N 



Caffeine 



(1:3:7: trimethylxanthine or \ 



1:3:7: trimethyl — 2:6: dioxypurinej 



N(CH3)30H 



I 

 CH2CH2OH 



Choline 



