6-allyl-3-((S)-3-(tert-butyldimethylsilyloxy)-3-methylbutan-2-yl)-6-phenyl-1,3-oxazinan-2-one → 6-allyl-3-((S)-3-hydroxy-3-methylbutan-2-yl)-6-phenyl-1,3-oxazinan-2-one

HRID 2091536ノート

反応式

HRID 2091536 の反応式
[CH2:1]([C:4]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]([O:16][Si](C(C)(C)C)(C)C)([CH3:15])[CH3:14])[CH3:12])[CH2:6][CH2:5]1)[CH:2]=[CH2:3]>C(O)(C(F)(F)F)=O.C(Cl)Cl>[CH2:1]([C:4]1([C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]([OH:16])([CH3:14])[CH3:15])[CH3:12])[CH2:6][CH2:5]1)[CH:2]=[CH2:3]

参加物

3

反応物 1

HCID 584852646-allyl-3-((S)-3-(tert-butyldimethylsilyloxy)-3-methylbutan-2-yl)-6-phenyl-1,3-oxazinan-2-one

生成物 1

HCID 426423966-allyl-3-((S)-3-hydroxy-3-methylbutan-2-yl)-6-phenyl-1,3-oxazinan-2-one

試薬・触媒・溶媒 1

HCID 21863450Trifluoroacetic acid methylene chloride溶媒

反応条件

温度
0 °C

実験手順

A mixture of 6-allyl-3-((S)-3-(tert-butyldimethylsilyloxy)-3-methylbutan-2-yl)-6-phenyl-1,3-oxazinan-2-one isomer 1 (80 mg, 0.19 mmol) in 20% TFA/DCM (2 mL) was stirred for 30 min at 0° C. The mixture was concentrated to give crude 6-allyl-3-((S)-3-hydroxy-3-methylbutan-2-yl)-6-phenyl-1,3-oxazinan-2-one isomer 1 (50 mg, 86%). LC-MS Method 2 tR=1.85 min, m/z=326, 304; 1H NMR (CDCl3) 1.07 (m, 6H), 1.18 (s, 3H), 2.15 (m, 1H), 2.25 (m, 1H), 2.58 (m, 2H), 2.90 (m, 1H), 3.08 (m, 1H), 3.20 (m, 1H), 5.02 (m, 2H), 5.68 (m, 1H), 7.22 (3H), 7.31 (2H).

後処理

  1. concentrationThe mixture was concentrated

出典と根拠

ORDレコード
ord-af0d3aaa9f4f4dc6bbb677631be96550
出典データセット
uspto-grants-2013_05
特許番号
US08440658B2

反応ノート

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