When {HEAD ~ free compounds} are obtained in {TAIL ~ any step} of the above mentioned reactions for the invention, they may be converted into salts in any known method; or when salts are obtained therein, they may be converted into free compounds or any other salts in any known method 
are obtained in
When { HEAD ~ free compounds } are obtained in { TAIL ~ any step } of the above mentioned reactions for the invention , they may be converted into salts in any known method ; or when salts are obtained therein , they may be converted into free compounds or any other salts in any known method
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH