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  1. corey, e. j., & cheng, x.-m. the logic of chemical synthesis. wiley, 1989.
  2. zhang, y., et al. "organocatalytic michael addition reactions using dbu-based salts." org. lett., 2015, 17 (8), 1972¨C1975.
  3. enders, d., et al. "dbu as a versatile organocatalyst in asymmetric synthesis." chem. rev., 2007, 107 (12), 5606¨C5655.

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