Cite

    Wei Li et al.. “Synthesis of antitumor 3, 4, 6, 7-tetrahydro-2H-pyrimido[1, 6-c]quinazolin-2-imine derivatives via reductive dearomatization-initiated intramolecular cyclization.” Tetrahedron, vol. 72, no. 23, 2016, pp. 3185–3192. http://access.bl.uk/ark:/81055/vdc_100032233791.0x000043