DeGraw, Joseph I.; Almquist, Ronald G.; Hiebert, Charles K.; Colwell, William T.; Crase, Jac; Hayano, Takeshi; Judd, Amrit K.; Dousman, Linda; Smith, R. Lane; Waud, William R.; Uchida, Itsuo Journal of Medicinal Chemistry, 1997, vol. 40, # 15 p. 2386 - 2397 doi: 10.1021/jm950803a