Frutos, et al; “An improved synthesis of N-aryl-hydantoin LFA-1 antagonists via the enantiospecific alkylation of an isobutyraldehyde-derived imidazolidinone template”, Tetrahedron: Asymmetry, 12 (2001) 101-104. |
Appel, et al; “Notiz ueber eine neue Carbodiimid-Synthese”, Chem. Ber. 104, 1335-1336 (1971). |
Lee, et al, “The Reaction of Vinyl Phosphates with Iodotrimethylsilane: Synthesis of Vinyl Iodides from Ketones”, Tetrahedron Letters, vol. 34, No. 15, 2433-2436, 1993. |
Nicolaou, et al, “Synthesis of N-heterocycles via lactam-derived ketene aminal phosphates. Asymmetric synthesis of cyclic amino acids.”, Chem. Commun. 1998, 1757-1758. |
Takahata, et al, “An Asymmetric Total Synthesis of (-)-Supinidine”, Tetrahedron, vol. 47, No. 36, 7635-7644, 1991. |
Williams, et al, “Carbodilmide Chemistry: Recent Advances”, Chem. Rev.Vo. 81, No. 4, 1981, 589-636. |
Yee, “Self-Regeneration of Stereocenters: A Practical Enantiospecific Synthesis of LFA-1 Antagonist BIRT-377”, Organic Letters, vol. 2, No. 18, 2000, 2781-2783. |