Ahmad MW, Kim HS. Stereoselective synthesis of 3,7-diarylaminocholestanes by titanium-mediated reductive amination.
Steroids 2014;
88:53-9. [PMID:
25008986 DOI:
10.1016/j.steroids.2014.06.018]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 06/11/2014] [Accepted: 06/20/2014] [Indexed: 10/25/2022]
Abstract
An efficient method for the synthesis of aryl aminocholestanes, using a chlorotriisopropoxytitanium(IV)-mediated reductive amination reaction of 5α-cholestane-3,7-dione, is reported. A series of 3,7-diarylaminocholestane derivatives were prepared according to this methodology in up to 98% yield. These compounds were primarily characterized by (1)H NMR, (13)C NMR, and mass spectrometry.
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