Page 516 - Applied Pharmacognosy
P. 516
Summary 515
Plant No. of Starting materials Precursor Example
isoprenoids carbon
atoms DMPP + IPP GeranylPP (C10) Menthol
Monoterpenes GeranylPP + IPP FarnesylPP (C15) Artemisinin
Sesquiterpenes 10 FarnesylPP + IPP Geranyl-geranylPP (C20) Abietic acid
Diterpenes Geranyl-geranylPP + IPP
Sesterpenes 15 FarnesylPP + FarnesylPP --- ---
Triterpenes Squalene (C30) Oleanolic acid
Sterols 20 triterpenoids Squalene (C30) Beta-sitosterol
Tertraterpenes Phytoene (C40) Carotenoids
25 Geranyl-geranylPP + Geranyl-
geranylPP
30
18-30
40
