Ditregra - an auxiliary program for structural determination of diterpenes

  title={Ditregra - an auxiliary program for structural determination of diterpenes},
  author={Sandra A. V. Alvarenga and J. P. Gastmans and Gilberto V. Rodrigues and V. Emerenciano},
This work describes the creation of heuristics rules based on 13 C-NMR spectroscopy that characterize several skeletal types of diterpenes. Using a collection of 2745 spectra we built a database linked to the expert system SISTEMAT. Several programs were applied to the database in order to discover characteristic signals that identify with a good performance, a large diversity of skeletal types. The heuristic approach used was able to differentiate groups of skeletons based firstly on the… 

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