Aug. 27, 2020  157  US 2020/0272048 Al  Quencher 29  \  ;;°+c  +--(  I\  WH2  I  I  0  Quencher  30  ~ j  0  0  o- WH2  I  I  0  Quencher  31  ~o  Br~O+cWH2 Br Br  0- Br  O  Quencher  32  Quencher  33  I  ’  :+cNH,  ,-q-o  Quencher  34  Br  lli~:+cNH, lli-Q-O  Br  Quencher  35  Quencher28  Quencher27  o- 0  o- Quencher26  -continued  -continued 