td composes oxygenes 2011.bak

CH3
CH
CHO
C2H5
CH3
CH2CH2 O
CH2
CH3
CH3C
OH
CH3
CH2
CH3
CH3
C CH
CH3
C2H5 O
CH3
CH2
C(CH3)2
CH2
OH
CH3
CH3
C
CH3
CH3CH
COOH
CH3
CH
CH
C
O
O
CH
CH3
CH3
CH3
CH3
(a) (b)
(c)
(d) (e) (f)
(g)