[CH:1](=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[S:9]1[CH:13]=[CH:12][N:11]=[C:10]1[NH2:14].C(O)(=O)C>C(Cl)Cl.CO.CC(N(C)C)=O>[CH2:1]([NH:14][C:10]1[S:9][CH:13]=[CH:12][N:11]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1In a 20 mL vial, to a solution of benzaldehyde (40 mg, 0.38 mmol) in DCM/MeOH (1.4 mL) was added a solution of thiazol-2-amine (47 mg, 0.47 mmol) in DMA (1.8 mL). A solution of acetic acid (66 mg, 1.1 mmol) in DCM/MeOH (1.4 mL) was then added, followed by the addition of 470 mg of MP-CNBH3 resin (3 eq.; subst. 2.36 mmoles/g). The vial was capped and was then heated with shaking overnight at 65° C. The progress of the reaction was monitored by LC/MS. After completion of the reaction, the reaction mixture was concentrated to dryness. The residue was dissolved in 1:1 DMSO/MeOH. Purification by reverse phase HPLC (TFA method) gave the title compound.
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