Figure 2
Scheme of the synthesis of the title compound. Reagents and conditions: (i) diisobutylaluminium hydride (DIBAL-H), THF, 24 h, room temperature; (ii) Ac2O, py, 16 h, room temperature; (iii) K2CO3, 2,4-dinitrochlorobenzene (DNClB), DMF, 3 h, 353 K; (iv) Ethylenediamine (EDA), DMF, 323 K, 16 h. |