our essential question:
I
O O O
O
OH H
NH O O OH
OH
O O
O O
1. taxol (paclitaxel)
O
I
W
W
stock value 
new price x investment original price
560 dollars x 1000 dollars  1150 dollars 485 dollars
O
stock value 
new price x investment original price
$21 x $500,000  $525,000 $20
I H OH
O O
O
OH
O
O
H
NH O
O
H O
O
OH
OH
HO H O
O O
O OH O
H
O O
O
O
O
H
O
O OO O
1. taxol (paclitaxel)
N
azadirachtin
O
N
O
O
N
N
OH
O N
N
Co N N
3+
R
N
HO
N
O
O
O
P
O O
O
O O
3. Vitamin B12
N
O
OH O
H O O H O
H
H O
H
OH OH 4. ginsenoside rb2
N O
OH H
OH HO
O N
HO
OH OH
OH OH
O O
OH
HO
I
HO Na O S O O O
OH
HO HO HO
H O
H
OH
HO
H
OH
O H
H O H
O H
H O
O H HO H
H O H
O H O
O
H
H
HO
H O H H
OH OH O O O S O OH Na H O H
H O H H O H H
O H HO H HO
HO HO
O H
O
O H
O
H OH
O
H
O H
H
H
HO
O
H
H O OH H
O
OH H HO
HO
H OH
H OH
HO OH H H O O H HO
H O
O H
O H O H
OH
3
click on images to manipulate
F
F F
F
H H
C
H
H H
C H
O
H C
H
C H H H H
H
H C C H H O C H H H
O
OH
H
H H C
H
OH C C
OH
OH H
OH
• • • • •
•
13
14
Lithium
Aluminum
Sodium
bicarbonate
Calcium
Rubidium
oxide
fluoride
Beryllium
hypochlorite
iodide
dichromate
Barium
carbonate
nitrite
Francium
Zinc
bromate
iodate
silver
nitride
phosphide
hydroxide
phosphate
C
O
Br N
H O
O
Si F
Li
Na
W
N
0
+1 +2
+3
polyvalent
-3
-2 -1
F
O
G
D H H N C H H C H H H
and
H H C H N H C H H H
U
O O
+
O
-
I
W
C
r r r r