(S)-tert-butyl 3-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-oxo-5,6-dihydropyridine-1(2H)-carboxylate → (2S,5S)-tert-butyl 3-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-hydroxy-5,6-dihydropyridine-1(2H)-carboxylate

反応式

[Si:1]([O:8][CH2:9][CH2:10][C:11]1[C@@H:12]([CH2:25][O:26][Si:27]([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28])[N:13]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][C:15](=[O:17])[CH:16]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[Si](OC[C@@H]1C=C(C)[C@H](O)CN1C(OC(C)(C)C)=O)(C(C)(C)C)(C)C>>[Si:1]([O:8][CH2:9][CH2:10][C:11]1[C@@H:12]([CH2:25][O:26][Si:27]([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:28])[CH3:29])[N:13]([C:18]([O:20][C:21]([CH3:24])([CH3:22])[CH3:23])=[O:19])[CH2:14][C@@H:15]([OH:17])[CH:16]=1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:3])[CH3:2]

参加物

反応物 2

HCID 89852111(S)-tert-butyl 3-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-oxo-5,6-dihydropyridine-1(2H)-carboxylate2 回

HCID 89852486tert-Butyl (3S,6S)-6-{[(tert-butyldimethylsilyl)oxy]methyl}-3-hydroxy-4-methyl-1,2,3,6-tetrahydropyridine-1-carboxylate

生成物 1

HCID 89852358(2S,5S)-tert-butyl 3-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-hydroxy-5,6-dihydropyridine-1(2H)-carboxylate収率 85.4%

実験手順

The title compound was prepared from (S)-tert-butyl 3-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2-(((tert-butyldimethylsilyl)oxy)methyl)-5-oxo-5,6-dihydropyridine-1(2H)-carboxylate (Intermediate 280, 8.55 g, 17.11 mmol) according to the procedure described for Intermediate 8 to afford the desired product (7.33 g, 85%) as a light yellow oil.

出典と根拠

ORDレコード: ord-eda9e26ab3064241b2e55c7efda2771a
出典データセット: uspto-grants-2016_04
DOI: 10.6084/m9.figshare.5104873.v1
特許番号: US09309245B2

反応ノート

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