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Trityl isothiocyanate support for solid-phase synthesis.
1Department of Chemistry, Levine Science Research Center, Duke University, Durham, North Carolina 27708-0317, USA.
Journal of Combinatorial Chemistry
|January 10, 2001
Summary
Trityl isothiocyanate resin is a versatile precursor for synthesizing thiosemicarbazide resins and supported thioureas. These compounds are efficiently converted into valuable 2-aminothiazole-5-carboxylates via solid-phase synthesis.
Area of Science:
- Organic Chemistry
- Polymer Chemistry
- Medicinal Chemistry
Background:
- Trityl chloride resin is a common starting material in solid-phase synthesis.
- Isothiocyanates are reactive intermediates used in organic synthesis.
- Thiosemicarbazones and thioureas are important scaffolds in medicinal chemistry.
Purpose of the Study:
- To develop a novel resin-based synthetic route using trityl isothiocyanate resin.
- To explore the utility of this resin in preparing supported thioureas and their derivatives.
- To synthesize 2-aminothiazole-5-carboxylates through a solid-phase approach.
Main Methods:
- Preparation of trityl isothiocyanate resin from trityl chloride resin.
- Solid-phase synthesis of supported thioureas by reacting the resin with various amines.
- Conversion of supported thioureas to 2-aminothiazole-5-carboxylates using methyl 2-chloroacetoacetate.
Main Results:
- Trityl isothiocyanate resin was successfully prepared and characterized.
- A range of supported thioureas were synthesized efficiently.
- The supported thioureas were converted to 2-aminothiazole-5-carboxylates in good yields.
Conclusions:
- Trityl isothiocyanate resin is a valuable and efficient precursor for solid-phase synthesis.
- This method provides a convenient route to supported thioureas and 2-aminothiazole-5-carboxylates.
- The developed methodology offers advantages for the synthesis of heterocyclic compounds in medicinal chemistry research.