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K. L. French, A. J. Angel, A. R. Williams, D. R. Hurst and C. F. Beam, “A New Preparation of Substituted 4H-1-Benzothiopyran-4-Ones from C(a), N-benzoyl Hydrazones or C(a), n-Carboalkoxy Hydrazones and Methyl Thiosalicylate,” Journal of Heterocyclic Chemistry, Vol. 35, No. 1, 1998, pp. 45-48.
http://dx.doi.org/10.1002/jhet.5570350109

has been cited by the following article:

• TITLE: Efficient Synthesis of a New Class of N-Nucleosides of 4H-Thiochromeno[2,3-d]pyrimidine-10-Sulfone as Potential Anticancer and Antibacterial Agents

  AUTHORS: Abdulrahman G. Alshammari, Abdel-Rhman B. A. El-Gazzar, Hend N. Hafez

  KEYWORDS: Thiochromene; Pyrimidine; Antibacterial; Anticancer Agents

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.3 No.3A, November 5, 2013

  ABSTRACT: A highly practical and efficient preparation of 6-methy-4H-thiochromene and 7-methyl-thiochromene[2,3-d]pyrimidine derivatives was developed via a multi-component reaction of 3-methyl-thiophenol (1), aldehydes (2), and malononitrile (3). A series of pyrimidine nucleoside, thiochromene[2,3-d]pyrimidine and thiochromene[2,3-d]pyrimidine-10-sulfone was efficiently obtained. These hybrid compounds were evaluated as potential antibacterial and anticancer agents and showed encouraging biological activities. Some of these derivatives showed broad-spectrum antitumour activity against the nine tumour subpanels tested, and demonstrated significant activity in the in vitro antitumour screening expressed by MG-MID log10GI50 value of －4.55, －4.67 and －4.73 of compounds 9a, 9b and 9c, respectively.