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The C-25 Isomerism of Smilagenin and Sarsasapogenin 1

โœ Scribed by Scheer, Irving; Kostic, Robert B.; Mosettig, Erich

Book ID
126184729
Publisher
American Chemical Society
Year
1955
Tongue
English
Weight
727 KB
Volume
77
Category
Article
ISSN
0002-7863

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Ab initio proton and 13C NMR assignments for a stereoisomeric pair of 5b steroidal sapogenins, smilagenin (1) and sarsasapogenin (2), were accomplished using DEPT, COSY, TOCSY, HETCOR, HMQC, HMQC-TOCSY, HSQC-RELAY, HMBC and selective reverse INEPT techniques ; the 13C NMR assignments for 2 were con-