Scheme 1.
Synthesis of toluenesulfonamidedipeptide, Reagents and Conditions- (a) Na2CO3, 0 °C - rt, 6 h; (b) EDC.HCl, HOBt, DIPEA, DCM, rt, 18 h; (c) DCM/TFA (1:1 v/v); (d) EDC.HCl, HOBt, DIPEA, DCM, rt, 18 h.
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