... isolation Leaves of Clausena heptaphylla were dried at 40 ÷ 50 0C and powdered. The powder ( 500 g) was extracted with 3 litres MeOH 90 0at 80 0C. The extract was filtered and concentrated in ... the product (CHCl3)Wavenumbers (cm-1)51711311461752 60 2432 01 217891 0 35 0 100 1 50 2 00 2 50 1 90 117Figure 3: 1H-NMR spectrum of the product ( 500 MHz, CDCl3)Figure ... CDCl3)Figure 4: 13C-NMR spectrum of the product ( 500 MHz, CDCl3)8, 0 m7,5 7 ,0 6,5 6 ,0 5,5 5 ,0 4,5 4 ,0 3,5 3 ,0 2,5 2 ,0 1,5 1 ,0 0,5 0, 0118The 13C-NMR spectrum also gave support to...