US 9,063,416 B2  30  29  -continued  -continued  .  1  Formula 12]  [Chem1ca  (al-1-27)  Ra  ~o  0  Ra  ~o  0  (al-1-29)  Ra  ~o  (al-1-30)  Ra  ~o  0  (al-1-31)  Ra  ~o  (al-1-36)  Ra  ~o  (al-1-35)  Ra  ~o  0  (al-1-34)  Ra  ~o  0  (al-1-33)  (al-1-32) 