Dicyclohexylcarbodiimide → 13-(S)-[[(9H-Fluoren-9-yl)methoxycarbonyl]amino]-3-(R)-methyl-12-oxo-14-(phenylmethoxy)-6-(phenylmethyl)-2,6,11-triazatetradecanoic acid, 1,1-dimethylethyl ester

HRID 1418623ノート

反応式

HRID 1418623 の反応式
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@H:19]([C:29](O)=[O:30])[CH2:20][O:21][CH2:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=3)=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.C1C=CC2N(O)N=NC=2C=1.C1CCC(N=C=NC2CCCCC2)CC1.[NH2:57][CH2:58][CH2:59][CH2:60][CH2:61][N:62]([CH2:75][C:76]1[CH:81]=[CH:80][CH:79]=[CH:78][CH:77]=1)[CH2:63][CH2:64][C@H:65]([NH:67][C:68](=[O:74])[O:69][C:70]([CH3:73])([CH3:72])[CH3:71])[CH3:66]>ClCCl.C(OCC)(=O)C>[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@@H:19]([CH2:20][O:21][CH2:22][C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=3)[C:29](=[O:30])[NH:57][CH2:58][CH2:59][CH2:60][CH2:61][N:62]([CH2:75][C:76]3[CH:77]=[CH:78][CH:79]=[CH:80][CH:81]=3)[CH2:63][CH2:64][C@@H:65]([CH3:66])[NH:67][C:68]([O:69][C:70]([CH3:73])([CH3:71])[CH3:72])=[O:74])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1

参加物

7

反応物 4

HCID 10868DicyclohexylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 7017914Fmoc-O-benzyl-L-serineHCID 10689168N-[3-[(4-aminobutyl)(phenylmethyl)amino]-1-(R)-methylpropyl]carbamic acid, 1, 1-dimethylethyl ester

生成物 1

HCID 8675393313-(S)-[[(9H-Fluoren-9-yl)methoxycarbonyl]amino]-3-(R)-methyl-12-oxo-14-(phenylmethoxy)-6-(phenylmethyl)-2,6,11-triazatetradecanoic acid, 1,1-dimethylethyl ester収率 96.9%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒2 回HCID 8857Ethyl Acetate溶媒

反応条件

温度
0 °C

実験手順

1.71 g (4.1.10-3 mol) of N-[(9H-fluoren-9-yl)methoxycarbonyl]-O-phenylmethyl-(L)-serine are dissolved in 60 ml of dichloromethane. The solution is cooled to 0° C. and a solution of 0.55 g (4.10-3 mol) of HOBT and 1.54 g (7.5.10-3 mol) of DCC in 20 ml of dichloromethane is added. The mixture is stirred for 0.5 hour, 1.30 g (3.72.10-3 mol) of N-[3-[(4-aminobutyl)(phenylmethyl)amino]-1-(R)-methylpropyl]carbamic acid, 1, 1-dimethylethyl ester are then added and the reaction mixture is stirred at room temperature for 16 hours. The solvent is removed under reduced pressure and the residue is purified by chromatography on silica gel using an ethyl acetate/methylcyclohexane mixture (1/1 v/v) and then pure ethyl acetate as the eluent to give 2.7 g of the expected product in the form of a white crystalline solid (yield=96%).

後処理

  1. stirringthe reaction mixture is stirred at room temperature for 16 hours
  2. customThe solvent is removed under reduced pressure
  3. customthe residue is purified by chromatography on silica gel using an ethyl acetate/methylcyclohexane mixture (1/1 v/v)

出典と根拠

ORDレコード
ord-783bf9f57d18491b950657b284592a9c
出典データセット
uspto-grants-1999_03
特許番号
US05883132

反応ノート

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