Signal assignment to, and chemical shift dependency for different solvents for all investigated anticonvulsants.

Multiplicity of  signals:

¹⁾multiplet broadened to singlet, ²⁾broad singlet, ³⁾multiplet, ⁴⁾singlet, ⁵⁾no publicly available reference was found; signals deduced from compounds with comparable structure: barbituric acid, toluene, 4-propyl-phenole; n.o.: no signal observed.

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