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. 2016 Jan 4;4(1):e1137381. doi: 10.1080/21690731.2015.1137381

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© 2016 Taylor & Francis

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Figure 4. — A. Several synthetic routes to hippuristanol have been elaborated, involving hydrocortisone,^106,109 hecogenin acetate,¹⁰⁸ or 11-ketotigogenin¹⁰⁷ as starting material. B. Structure-activity relationship for hippuristanol. See text for details.