Picramic acid CAS: 96-91-3

4-Carboxyphenylboronic acid

6-Bromoisatin

Biphenyl-3-boronic acid

5-Fluoroisatin

4-Chloroaniline CAS：106-47-8

Benzyl toluene/MBT CAS： 27776-01-8

2,4-Dihydroxybenzoic acid CAS No.:89-86-1

4-Chlorobenzaldehyde CAS 104-88-1