Solid phase synthesis of structurally diverse pyrimido[4,5-d] pyrimidines for the potential use in combinatorial chemistry |
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Authors: | Srivastava S K Haq W Chauhan P M |
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Institution: | Division of Medicinal Chemistry, Central Drug Research Institute, Lucknow, India. |
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Abstract: | An efficient solid phase synthesis of pyrimido4,5-d]pyrimidine derivatives is described. Reaction of polymer-bound pyrimidine 1 with urea or thiourea followed by cleavage from the support provided 4-aminopyrimido4,5-d]pyrimidines 4 and 5 while treatment of 6 with phenyl isocyanate or phenyl isothiocyanate followed by cleavage from resin afforded 3-phenylpyrimido4,5-d]pyrimidines 9 and 10. |
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