and the oxygen analog, mono- and diethyl phosphoric acids, and diethyl 
phosphorothioic acid were isolated. There was evidence also that some 
coral was completely degraded to phosphoric acid and subsequently in- 
corporated into natural phosphorus containing metabolites (Dorough et 
al., 196la,b). 
- it oO an ° 
o-P- =O OP-C =O 
co} 0, 
rc Cl 
CH, CH, 
De a Coral Oxygen Analogue De-ethylated 
Coral 
t 
cup P- __ C190 : =O 
Cl 
CH, 
Coral Coral Oxygen Analogue 
a i 
(C5H50) > -P -OH ee (C5H,0) 5 -P -OH 
Diethyl Phsophorothioc Acid Diethyl Phosphoric Acid 
i ; 
(CyH.0) -P -OB _—_—>> CoH50-P -OH 
OH OH 
Mono-ethyl Phosphorothioc Acid Mono~ethyl Phosphoric Acid 
n0-B -on —_—_——— HPO, 
OH 
Phosphorothioe Acid Phosphoric Acid 
Pe 
