Tian Y, Hong Y, Bonacorsi SJ, Balog A, Gong S. Synthesis of [3α-(3) H] 17α-hydroxy pregnenolone and [3α-(3) H] pregnenolone.
J Labelled Comp Radiopharm 2014;
57:1-11. [PMID:
24448740 DOI:
10.1002/jlcr.3114]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 07/09/2013] [Accepted: 08/14/2013] [Indexed: 11/05/2022]
Abstract
For the first time, [3α-(3) H] 17α-hydroxy pregnenolone (1) was synthesized through a multiple step sequence. The presence of [3β-(3) H] isomer in RP-HPLC purified product was identified by tritium NMR. The [3β-(3) H] isomer was then separated from [3α-(3) H] 17α-hydroxy pregnenolone with chiralPAK AD-H column. [3α-(3) H] pregnenolone (2) was synthesized from commercial available 5-pregnen-3,20-dione in one step with an improved procedure.
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