(2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

Base Information

Chemical Name:(2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol
CAS No.:795305-62-3
Molecular Formula:C₃₂H₃₈O₈
Molecular Weight:550.649
Hs Code.:

Synonyms:(2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

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Chemical Property of (2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

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Technology Process of (2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

There total 5 articles about (2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol 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: 87.0%

: phenylmagnesium bromide

: 847900-41-8
2,6-di-O-benzyl-3,4-O-[(2S,3S)-2,3-dimethoxybutan-2,3-diyl]-D-mannolactone

: 795305-62-3
(2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

Guidance literature:: In tetrahydrofuran; at -78 ℃; for 1h;
DOI:10.1021/ol048525+

Reference yield:

: 13992-16-0,23661-28-1,24404-53-3,28512-68-7,65236-85-3,86782-39-0,121524-01-4,121570-34-1,108032-93-5
phenyl 2,3,4,6-tetra-O-acetyl-1-thio-α-D-mannopyranoside

: 795305-62-3
(2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

Guidance literature:: Multi-step reaction with 5 steps

1.1: NaOMe / methanol / 0.5 h / 20 °C

2.1: 7.2 g / (MeO)3CH; CSA / methanol / 14 h / Heating

3.1: 99 percent / NaH / dimethylformamide / 1 h / 20 °C

4.1: NBS / H₂O; acetone / 1 h / 0 °C

4.2: 77 percent / Ac₂O / dimethylformamide / 2 h / 80 °C

5.1: 87 percent / tetrahydrofuran / 1 h / -78 °C

With N-Bromosuccinimide; camphor-10-sulfonic acid; sodium methylate; sodium hydride; trimethyl orthoformate; In tetrahydrofuran; methanol; water; N,N-dimethyl-formamide; acetone; 5.1: Grignard addition;
DOI:10.1021/ol048525+

Reference yield:

: 2936-70-1,5624-48-6,13992-15-9,16758-34-2,28244-97-5,77481-63-1,105088-17-3,149495-84-1,77481-62-0
(2R,3S,4S,5S,6R)-2-Hydroxymethyl-6-phenylsulfanyl-tetrahydro-pyran-3,4,5-triol

: 795305-62-3
(2S,3S,4aR,5R,7S,8S,8aS)-8-Benzyloxy-5-benzyloxymethyl-2,3-dimethoxy-2,3-dimethyl-7-phenyl-hexahydro-pyrano[3,4-b][1,4]dioxin-7-ol

Guidance literature:: Multi-step reaction with 4 steps

1.1: 7.2 g / (MeO)3CH; CSA / methanol / 14 h / Heating

2.1: 99 percent / NaH / dimethylformamide / 1 h / 20 °C

3.1: NBS / H₂O; acetone / 1 h / 0 °C

3.2: 77 percent / Ac₂O / dimethylformamide / 2 h / 80 °C

4.1: 87 percent / tetrahydrofuran / 1 h / -78 °C

With N-Bromosuccinimide; camphor-10-sulfonic acid; sodium hydride; trimethyl orthoformate; In tetrahydrofuran; methanol; water; N,N-dimethyl-formamide; acetone; 4.1: Grignard addition;
DOI:10.1021/ol048525+