参考文献:[1] Chemistry - A European Journal, 2017, vol.23, #54, p.13445-1345;[2] Patent: US2008/214838, 2008, A1;[3] Tetrahedron, 1965, vol.21, p.245-254;[4] Journal of the Chemical Society [Section] B: Physical Organic, 1969, p.12-15;[5] Patent: EP2236500, 2010, A1;[6] Journal of the American Chemical Society, 2011, vol.133, #49, p.19864-19877。