LOT 
CH 
OH 
Hy 
OH 
H 
CH 
CRESOLS 
0 
HO, J 
aa 
H 
HOS. Zz 0 ge B 
H 
—>» —_ —_> 
H H 2 
OH 
Q 
Ms 
HQ _,0 HQ Y 
8. &-% 
NON 2g bse N 
a 
3 he, 
4-hydroxy-2-0xo 
hexanoate 
“RO H V3 
— PF  CH-OH 
fo: es tH —» 
of c =0 
OOH 
4-hydroxy-2- 
oxovalerate 

oxobutyro- 
lactone 
Propionaldehyde, 
Pyruvate and 
Acetate 
Acetate and 
acetaldehyde and 
pyruvate 
