Further, in order to obtain {TAIL ~ an optimum reaction condition}, {HEAD ~ salts} such as sodium chloride, metal ions such as zinc ion and other additives and auxiliary agents which are commonly used in this art may be added to the reaction system 
Further , in order to obtain { TAIL ~ an optimum reaction condition } , { HEAD ~ salts } such as sodium chloride , metal ions such as zinc ion and other additives and auxiliary agents which are commonly used in this art may be added to the reaction system
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH