Methanol → methyl 3-[rel-(4aR,6R,8aS)-2-(benzoylamino)-6-(1-methyl-1H-pyrazol-4-yl)-4,4a,5,6-tetrahydropyrano[3,4-d][1,3]thiazin-8a(8H)-yl]-4-fluorobenzoate

HRID 2168307

反応式

HRID 2168307 の反応式
Br[C:2]1[CH:3]=[CH:4][C:5]([F:33])=[C:6]([C@:8]23[CH2:17][O:16][C@@H:15]([C:18]4[CH:19]=[N:20][N:21]([CH3:23])[CH:22]=4)[CH2:14][C@H:13]2[CH2:12][S:11][C:10]([NH:24][C:25](=[O:32])[C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)=[N:9]3)[CH:7]=1.C(OC[CH:43]1[CH2:45][O:44]1)C1C=CC=CC=1.C(N(CC)CC)C.C[OH:54]>CN1CCCC1=O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[C:25]([NH:24][C:10]1[S:11][CH2:12][C@@H:13]2[CH2:14][C@H:15]([C:18]3[CH:19]=[N:20][N:21]([CH3:23])[CH:22]=3)[O:16][CH2:17][C@:8]2([C:6]2[CH:7]=[C:2]([CH:3]=[CH:4][C:5]=2[F:33])[C:45]([O:44][CH3:43])=[O:54])[N:9]=1)(=[O:32])[C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1

参加物

7

反応物 4

HCID 887MethanolHCID 8471TriethylamineHCID 94247Benzyl glycidyl etherHCID 86762665N-[(4aR,6R,8aS)-8a-(5-bromo-2-fluorophenyl)-6-(1-methyl-1H-pyrazol-4-yl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-yl]benzamide

生成物 1

HCID 90209264methyl 3-[rel-(4aR,6R,8aS)-2-(benzoylamino)-6-(1-methyl-1H-pyrazol-4-yl)-4,4a,5,6-tetrahydropyrano[3,4-d][1,3]thiazin-8a(8H)-yl]-4-fluorobenzoate

試薬・触媒・溶媒 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒HCID 13387N-methyl-2-pyrrolidone溶媒

反応条件

温度
120 °C

実験手順

To a mixture of N-[rel-(4aR,6R,8aS)-8a-(5-bromo-2-fluorophenyl)-6-(1-methyl-1H-pyrazol-4-yl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-yl]benzamide [(+/−)-C46, which may be prepared in the same manner as C46, by using the chemistry described in Preparation 1 followed by Examples 10 and 12, but employing racemic 2-[(benzyloxy)methyl]oxirane as starting material] (1.0 g, 1.9 mmol) and triethylamine (580 mg, 5.73 mmol) in methanol (20 mL) and 1-methylpyrrolidin-2-one (10 mL) was added [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (140 mg, 0.19 mmol) in one portion at room temperature. The reaction mixture was stirred under carbon monoxide (2.5 MPa) at 120° C. for 18 hours, whereupon it was concentrated in vacuo to remove methanol, and partitioned between water (500 mL) and ethyl acetate (500 mL). The organic layer was washed with saturated aqueous sodium chloride solution (2×400 mL), dried over sodium sulfate, filtered, and concentrated under reduced pressure. Silica gel chromatography (Eluent: ethyl acetate) afforded the product as a red solid. Yield: 570 mg, 1.12 mmol, 59%. LCMS m/z 509.1 [M+H+].

後処理

  1. custommay be prepared in the same manner as C46
  2. customdescribed in Preparation 1
  3. concentrationwas concentrated in vacuo
  4. customto remove methanol
  5. custompartitioned between water (500 mL) and ethyl acetate (500 mL)
  6. washThe organic layer was washed with saturated aqueous sodium chloride solution (2×400 mL)
  7. dry with materialdried over sodium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-3ac142085caa4b57a5b57b6daa5a037f
出典データセット
uspto-grants-2015_06
特許番号
US09045498B2

関連ノート

読み込み中…