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Racemic N-methyl-4-[2-(methyl-sulfan-yl)-pyrimidin-4-yl]-1-(tetra-hydro-furan-3-yl)-1H-pyrazol-5-amine. 2009

Zhengyu Liu, and Kevin K-C Liu, and Arnold L Rheingold, and Antonio Dipasquale, and Alex Yanovsky

The title compound, C(13)H(17)N(5)OS, was obtained by cyclo-addition of 2-[2-(methyl-sulfan-yl)pyrimidin-4-yl]-3-oxo-propane-nitrile with (tetra-hydro-furan-3-yl)hydrazine dihydro-chloride and subsequent N-methyl-ation of 4-[2-(methyl-sulfan-yl)-pyrimidin-4-yl]-1-(tetra-hydro-furan-2-yl)-1H-pyrazol-5-amine with methyl iodide. The two mol-ecules in the asymmetric unit have opposite absolute configurations and are related by a noncrystallographic inversion center. Both feature intra-mol-ecular N-H⋯N hydrogen bonds. The geometry of the mol-ecules is similar to that observed in the structure of a single enanti-omer of the title compound.

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