This paper presents an optimized synthesis of two stereoisomers of 3-amino-7-12-dyhydroxycholanic acid. It was possible to obtain α-isomer in sufficient quantity. Unfortunately we could not receive β-isomer with the best yield currently.
Manta J., Lupea V. Bull. Soc. Chim. Biol., 1937;19:1343.
Chang F.C., Wood N.F., Holton W.F. J. Org. Chem., 1965;30:1718.
Ebersole R.C., Chang F.C. J. Org. Chem., 1973;38:2713.
Davis, A. P. Chem. Soc. Rev. 1993, 22, 243; Davis, A. P.; Bonar-Law, R. P.; Sanders, J. K. M. in Comprehensive Supramolecular Chemistry; Murakami, Y., Ed.; Pergamon: Oxford, 1996;4:257.
Walliman, P., Mani, T., Furer, A., Diederich, F. Chem. Rev., 1997;97:1567.
Li, Y. X., Dias, J. R. Chem. Rev., 1997;97:283.
Perry, J. J., Williams, R. P. J. Am. Chem. Soc., 1997;119:1793.
Broderick S., Davis A.P., Williams R.P. Tetrahedron Lett., 1998;39: 6083.
Moore K.S., Wehrli S., Roder H., Rogers M., Forrest J.N.,Jr., McCrimmon D.D., Zasloff M. Proc. Natl. Acad. Sci., USA, 1993;90:1354.
Ding B., Tatofa U., T. Orsak, Chadwell M., Savage P.B. Org. Lett., 2004;6:3433.
L.J. Lawless, A. G. Blackburn, A. J. Ayling, M. N. Pérez-Payán and A. P. Davis. Journal of the Chemical Society. Perkin Transactions 1, 2001;11:1329–1341.
Ryu E.H., Yan J., Zhao Y., Zhong Zh.Q. Journal of Organic Chemistry, 2006;71(19):7205–7213.
Zhao Y.; Zhong Zh. Q. Journal of the American Chemical Society, 2005, 127(50):17894– 17901