Triethylamine → 1-Cyanomethyl-4-pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide

HRID 1269016ノート

反応式

HRID 1269016 の反応式
[CH3:1][CH:2]([CH3:28])[CH:3]([NH:15][C:16]([CH:18]1[CH2:22][CH:21]([CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:20][NH:19]1)=[O:17])[CH:4]1[CH:9]([OH:10])[CH:8]([OH:11])[CH:7]([OH:12])[CH:6]([S:13][CH3:14])[O:5]1.[CH2:29]([N:31](CC)CC)[CH3:30].BrCC#N>C(#N)C>[CH3:1][CH:2]([CH3:28])[CH:3]([NH:15][C:16]([CH:18]1[CH2:22][CH:21]([CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:20][N:19]1[CH2:30][C:29]#[N:31])=[O:17])[CH:4]1[CH:9]([OH:10])[CH:8]([OH:11])[CH:7]([OH:12])[CH:6]([S:13][CH3:14])[O:5]1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 11534BromoacetonitrileHCID 780406994-Pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide

生成物 1

HCID 112364551-Cyanomethyl-4-pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide収率 10%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

実験手順

A stirred solution of crude 4-pentyl-pyrrolidine-2-carboxylic acid [2-methyl-1-(3,4,5-trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-yl)-propyl]-amide (210 mg, 0.50 mmol, 1 equiv) and triethylamine (0.21 mL, 1.51 mmol, 3 equiv), in anhydrous acetonitrile (3 mL) was treated with bromoacetonitrile (42 μl, 0.60 mmol, 1.2 equiv), at rt and under nitrogen. The resulting reaction mixture was stirred at rt for 18 h, evaporated to dryness and purified by chromatography over silica gel, with an eluant of 2.5% methanol in dichloromethane. The desired fractions were pooled, evaporated to dryness, and lyophilized to furnish the title compound (11.2 mg, 10%) as a fluffy white powder: TLC Rf=0.2 (5% methanol in dichloromethane); 1H NMR (300 MHz, CD3OD) δ 5.44 (d, J=5.49, 1), 4.38–4.23 (m, 4), 2.29 (s, 3), 1.52 (m, 11), 1.16–1.09 (m, 12);. MS (ESPOS): 458.5 [M+H]+, MS (ESNEG): 456.5 [M−H]−.

後処理

  1. customThe resulting reaction mixture
  2. customevaporated to dryness
  3. custompurified by chromatography over silica gel, with an eluant of 2.5% methanol in dichloromethane
  4. customevaporated to dryness

出典と根拠

ORDレコード
ord-ffe4629c7cdf4f1bb71111678d0d5f11
出典データセット
uspto-grants-2007_04
特許番号
US07199106B2

反応ノート

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