1-Hydroxybenzotriazole → 1-{[1-(2,3-Dihydro-benzo[1,4]dioxin-2-ylmethoxy)-naphthalene-2-carbonyl]-amino}-cyclopentanecarboxylic acid methyl ester

HRID 2062053

反応式

HRID 2062053 の反応式
[O:1]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[O:4][CH2:3][CH:2]1[CH2:11][O:12][C:13]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH:16]=[CH:15][C:14]=1[C:23](O)=[O:24].ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.C(N(CC)C(C)C)(C)C.Cl.[CH3:58][O:59][C:60]([C:62]1([NH2:67])[CH2:66][CH2:65][CH2:64][CH2:63]1)=[O:61]>CN(C=O)C>[CH3:58][O:59][C:60]([C:62]1([NH:67][C:23]([C:14]2[CH:15]=[CH:16][C:17]3[C:22](=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:13]=2[O:12][CH2:11][CH:2]2[O:1][C:6]3[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=3[O:4][CH2:3]2)=[O:24])[CH2:66][CH2:65][CH2:64][CH2:63]1)=[O:61]

参加物

7

反応物 5

HCID 757711-HydroxybenzotriazoleHCID 81531Diisopropylethylamine2 回HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 11513856Methyl 1-amino-1-cyclopentanecarboxylate, HClHCID 231327931-(2,3-Dihydro-benzo[1,4]dioxin-2-ylmethoxy)-naphthalene-2-carboxylic acid

生成物 1

HCID 667010541-{[1-(2,3-Dihydro-benzo[1,4]dioxin-2-ylmethoxy)-naphthalene-2-carbonyl]-amino}-cyclopentanecarboxylic acid methyl ester収率 89%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 84 mg 1-(2,3-dihydro-benzo[1,4]dioxin-2-ylmethoxy)-naphthalene-2-carboxylic acid in 1 ml abs. DMF under inert atmosphere 42 mg 1-hydroxybenzotriazole and 60 mg 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride and 0.65 μl of N,N-diisopropylethylamine were added at 0° C. After 30 minutes at 0° C. 42 mg of 1-amino-cyclopentanecarboxylic acid methyl ester hydrochloride, followed by 0.65 μl of N,N-diisopropylethylamine were added. After 48 h at room temperature the reaction mixture was concentrated, the residue was taken up in ethyl acetate and washed with 2 M HCl, aqueous sodium carbonate solution (10%) and brine. The organic layer was dried over magnesium sulphate, and concentrated to yield 96 mg of 1-{[1-(2,3-dihydro-benzo[1,4]dioxin-2-ylmethoxy)-naphthalene-2-carbonyl]-amino}-cyclopentanecarboxylic acid methyl ester.

後処理

  1. additionwere added
  2. concentrationAfter 48 h at room temperature the reaction mixture was concentrated
  3. washwashed with 2 M HCl, aqueous sodium carbonate solution (10%) and brine
  4. dry with materialThe organic layer was dried over magnesium sulphate
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-b986f4a5d29f4d109108d3682f0e8f94
出典データセット
uspto-grants-2012_10
特許番号
US08283479B2

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