Synthesis of 1-(2-Amino-3,5-dicyano-4-aryl-4 H-pyran-6-yl)guaiazulenes
Wang Daolin, Li Di, Cao Liang
Chin. J. Org. Chem. . 2012, (9): 1741 -1745 .  DOI: 10.6023/cjoc1201102