1-Propanol → (2S*,3R*)-3-tert-butoxycarbonylamino-2-hydroxy-3-(2-methoxy-quinolin-8-yl)-propionic acid methyl ester

HRID 527974ノート

反応式

HRID 527974 の反応式
[C:1](=[O:8])([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])[NH2:2].[OH-:9].[Na+].ClO[C:13]([CH3:16])([CH3:15])[CH3:14].CC[C@@H]1[C@@H]2C[C@H]([C@@H](OC3[C:50]4[C:45](=C[CH:47]=[CH:48][CH:49]=4)[C:44]([O:51][C@@H:52](C4C=CN=C5C=4C=C(OC)C=C5)[C@@H]4N5C[C@H](CC)[C@@H](CC5)C4)=[N:43]N=3)C3C=CN=C4C=3C=C(OC)C=C4)N(CC2)C1.CC[C@H]1[C@H]2C[C@H]([C@H](OC3C4C(=CC=CC=4)C(O[C@H](C4C=CN=C5C=4C=C(OC)C=C5)[C@@H]4N5C[C@H](CC)[C@@H](CC5)C4)=NN=3)C3C=CN=C4C=3C=[C:89]([O:96]C)C=C4)N(CC2)C1.[O-]S([O-])=O.[Na+].[Na+].[CH2:139]([OH:142])[CH2:140]C>O.C(O)CC.O.O.[O-][Os]([O-])(=O)=O.[K+].[K+]>[CH3:89][O:96][C:139](=[O:142])[C@@H:140]([OH:9])[C@H:14]([NH:2][C:1]([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:8])[C:13]1[CH:16]=[CH:47][CH:48]=[C:49]2[C:15]=1[N:43]=[C:44]([O:51][CH3:52])[CH:45]=[CH:50]2

参加物

10

反応物 7

HCID 10311-Propanol2 回HCID 14798Sodium HydroxideHCID 24437Sodium SulfiteHCID 77922tert-Butyl carbamateHCID 521297Tert-Butyl hypochloriteHCID 112172021,4-Bis(dihydroquinidine)phthalazineHCID 510036741-((1R)-((2R,4R,5S)-5-ethylquinuclidin-2-yl)(6-methoxyquinolin-4-yl)methoxy)-4-((1R)-((2R,4S,5R)-5-ethylquinuclidin-2-yl)(6-methoxyquinolin-4-yl)methoxy)phthalazine

生成物 1

HCID 90149690(2S*,3R*)-3-tert-butoxycarbonylamino-2-hydroxy-3-(2-methoxy-quinolin-8-yl)-propionic acid methyl ester収率 63%

試薬・触媒・溶媒 2

HCID 22595341Propanol water溶媒HCID 53393272Potassium osmate(VI) dihydrate溶媒

反応条件

温度
10 °C

実験手順

A solution of tert-butyl carbamate (7.06 g) in n-propanol (120 mL) was sequentially treated with 0.4M NaOH (218 mL) and tert-butyl hypochlorite (10.6 mL; freshly prepared as described in Org. Lett. (2003), 5(12), 2123-2126 (S-2)). The reaction mixture was treated with a solution of (DHQD)2PHAL (565 mg) and (DHQ)2PHAL (565 mg) in n-propanol (100 mL) and after 5 min cooled to 10° C. and sequentially treated with a suspension of intermediate BQ.i. (7.07 g) in water/n-propanol (1:1; 140 mL) and potassium osmate(VI) dihydrate (428 mg). After stirring at +10° C. for 20 min the reaction mixture was treated with Na2SO3 (15 g) and further stirred at rt for 10 min. The reaction mixture was extracted with EA and the org. layer was sequentially washed with 5% aq. K2CO3, sat. aq. NaHCO3 and brine. After drying over MgSO4 and evaporation of the solvent, the residue was purified by CC (DCM/MeOH 10-1 containing 1% NH4OH), affording a pale yellow foam (6.85 g; 63% yield).

後処理

  1. customfreshly prepared
  2. additionsequentially treated with a suspension of intermediate BQ.i
  3. stirringfurther stirred at rt for 10 min
  4. extractionThe reaction mixture was extracted with EA
  5. washlayer was sequentially washed with 5% aq. K2CO3, sat. aq. NaHCO3 and brine
  6. dry with materialAfter drying over MgSO4 and evaporation of the solvent
  7. customthe residue was purified by CC (DCM/MeOH 10-1 containing 1% NH4OH)
  8. customaffording a pale yellow foam (6.85 g; 63% yield)

出典と根拠

ORDレコード
ord-31fed36ccfc842efab88188c72e565eb
出典データセット
uspto-grants-2016_05
特許番号
US09346804B2

反応ノート

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