US 9,063,416 B2  44  43  -continued  -continued  [Chemical Formula 15]  (al-3-22)  Ra  ~o  0  0~  (al-3-25)  Ra  ~o  0  <  0  ~o  0  (al-3-23)  Ra  ~o  0  ~o  (al-3-24)  Ra  ~o  0  ~o  0  (al-3-27)  Ra  ~o  0  0~  0  ~o  0  (al-3-26)  Ra  ~o  0  <  0  ~o  0 