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Figure 3
Synthesis of (I) . Reaction conditions: (i) ethyl acrylate, MeOH, 298 K, 12 h; (ii) Na/MeOH, benzene, reflux, 5 h; (iii) AcOH/H2O (30% v/v), reflux. |
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Figure 3
Synthesis of (I) . Reaction conditions: (i) ethyl acrylate, MeOH, 298 K, 12 h; (ii) Na/MeOH, benzene, reflux, 5 h; (iii) AcOH/H2O (30% v/v), reflux. |