... Volume. Page. Author. Section. ---, Issue. Number. ... These materials can be accessed at: http://www.mdpi.com/1420-3049/18/10/13096/s1. Acknowledgments. ... Part 2. 1 Access to the [2]benzopyrano[4,3-c]pyrazole system of pharmaceutical interest. J. Chem. Soc. Perkin Trans. ...