参考文献:[1] Patent: US2010/120778, 2010, A1. Location in patent: Page/Page column 29;[2] Journal of the American Chemical Society, 1949, vol. 71, p. 6,7;[3] Journal of Medicinal Chemistry, 1981, vol. 24, #1, p. 93-101;[4] Patent: DE2433397, 1974
路线2:
参考文献:[1] Patent: US2010/120778, 2010, A1. Location in patent: Page/Page column 29;[2] Journal of the American Chemical Society, 1949, vol. 71, p. 6,7;[3] Journal of Medicinal Chemistry, 1981, vol. 24, #1, p. 93-101