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