Patent Application Publication  Jan. 23, 2014 Sheet 21 of 22  US 2014/0021404 Al  FIG.21  100  100  \  (1)  ~.~.~-•.-................  - 80  \  80  ?ft.  (CH$_{3}$ )  $_{2}$NH .. HC ! /MeOH  ....  \  C:  (1)  ....  \  C:  60«  ’  60  0  \  (.)  4f  C  0  \  O>  40  (2)  40  ...  \  C’O  C:  \  0  \ ..  .0  loo  (Q  20  \  20  0  $^{\ }$\  \,"~  0  .__  0  0  1  2  3  4  5  6  Amount of  dimethylamine  hydrochloride  (f) 