SulfonoTiide Re g uirin g 



CH2-SH , 



CH2 ^'''' 

 CH-NHz 

 COOH "^2 



CH2-S-CH3 

 GHz 



CH-NHg 

 COOH 



UNITS 



UNITS^ UNITS 



COOH 



1/2 UNIT 



CH3 



CHOH 



CH-NHz 



COOH 



GROWTH 



Sulfonamide Req uiring, Aminobenzoicless 



CH^-S-CH3 



CH2-SH 

 CH2 

 CH-NH2 

 COOH 



CH3 

 ^CHOH 



"^'cH-NHz 

 COOH 



Fig. 12.5 — Continued 



GROWTH 



209 



