(12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide

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Chemical Name:(12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide
CAS No.:310903-13-0
Molecular Formula:C₂₈H₃₄O₇Se
Molecular Weight:561.534
Hs Code.:

Synonyms:(12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide

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Chemical Property of (12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide

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Technology Process of (12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide

There total 2 articles about (12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 56.0%

: 1666-13-3
diphenyl diselenide

: 72948-20-0
teujaponin B

: (12S)-15,16-epoxy-4α,6α,12-trihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,19-olide

: 310903-13-0
(12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide

Guidance literature:: diphenyl diselenide; With sodium tetrahydroborate; In ethanol; at 20 ℃;

teujaponin B; In ethanol; at 20 ℃; for 1.5h;
DOI:10.1016/S0040-4020(00)00719-5

Reference yield:

: 64756-04-3
19-acetylgnaphalin

: 310903-13-0
(12S)-19-acetoxy-15,16-epoxy-4α,6α-dihydroxy-18-phenylselenyl-neocleroda-13(16),14-dien-20,12-olide

Guidance literature:: Multi-step reaction with 2 steps

1.1: 89 percent / NaBH₄ / CH₂Cl₂; ethanol / 0.5 h / 20 °C

2.1: NaBH₄ / ethanol / 20 °C

2.2: 56 percent / ethanol / 1.5 h / 20 °C

With sodium tetrahydroborate; In ethanol; dichloromethane; 1.1: Reduction / 2.1: Metallation / 2.2: Addition;
DOI:10.1016/S0040-4020(00)00719-5