Regiospecific synthesis of conjugates containing a diterpenoid fragment and a pyrazole-ring pharmacophore by 1,3-dipolar cycloaddition of diazomethane to allenoates in the presence of Et3N was demonstrated.
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Acknowledgment
The work was supported financially by a 2014 grant from the RSF Priority “Basic Research and Discovery Science by Individual Scientific Groups” (No. 14-13-01307) and RFBR Grant 13-00-14056 for information support. The spectral studies were performed using equipment of the Khimiya CCU, UfIC, RAS.
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Translated from Khimiya Prirodnykh Soedinenii, No. 4, July–August, 2016, pp. 562–565.
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Sakhautdinov, I.M., Gumerov, A.M., Malikova, R.N. et al. Synthesis of New Pyrazole–Methylmaleopimarate Conjugates. Chem Nat Compd 52, 651–655 (2016). https://doi.org/10.1007/s10600-016-1731-3
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DOI: https://doi.org/10.1007/s10600-016-1731-3