(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

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Chemical Name:(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}
CAS No.:478287-10-4
Molecular Formula:C₆₁H₁₀₂O₁₅Si₃
Molecular Weight:1159.73
Hs Code.:

(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

Synonyms:(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

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Chemical Property of (20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

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Technology Process of (20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

There total 3 articles about (20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside} 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: 39.0%

: 387821-77-4
(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclo-23-norcholanaldehyde 23,16-hemiacetal

: 2-O-(4-methoxybenzoyl)-3,4-di-O-triethylsilyl-β-D-xylopyranosyl-(1->3)-2'-O-acetyl-4'-O-triethylsilyl-α-L-arabinopyranosyl trichloroacetimidate

: 478287-10-4
(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

: (20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 22,16 hemiacetal 22-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-4-O-triethylsilyl-α-L-arabinopyranosyl 1,2-orthoacetate}

: (20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 22,16 hemiacetal 22-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

Guidance literature:: With trimethylsilyl trifluoromethanesulfonate; 4 A molecular sieve; In dichloromethane; at -68 ℃; for 0.5h;
DOI:10.1016/S0008-6215(02)00126-X

Reference yield:

: 285979-64-8
(20S)-6β-methoxy-17α-hydroxy-3α,5α-cyclopregnane-20,16β-carbolactone

: 478287-10-4
(20S)-6β-methoxy-16β,17α-dihydroxy-3α,5α-cyclobisnorcholanaldehyde 16-O-{O-[3,4-di-O-triethylsilyl-2-O-(4-methoxybenzoyl)-β-D-xylopyranosyl]-(1->3)-2-O-acetyl-4-O-triethylsilyl-α-L-arabinopyranoside}

Guidance literature:: Multi-step reaction with 2 steps

1: DIBAL-H

2: TMSOTf

With trimethylsilyl trifluoromethanesulfonate; diisobutylaluminium hydride;
DOI:10.1016/j.bmcl.2004.03.102