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A novel synthesis of 7-methylthiopyrazolo[1,5-a]pyrimidines via reaction of [bis(methylthio)methylene]malononitrile and ethyl 2-cyano-3,3-bis(methylthio)acrylate with 5-aminopyrazoles is reported and the synthetic potential of the method is demonstrated.
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Elgemeie et al. (1994) studied this question.
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