1,2-Dichloroethane → tert-butyl (2S)-2-{2-(4-fluorophenethyl)-5-[1-(thiazol-2-yl)-2-(1-methylimidazol-5-yl)ethoxy]benzoylamino}-4-methylsulfanylbutyrate

HRID 1251932ノート

反応式

HRID 1251932 の反応式
[F:1][C:2]1[CH:32]=[CH:31][C:5]([CH2:6][CH2:7][C:8]2[CH:16]=[CH:15][C:14]([O:17][CH:18]([C:26]3[S:27][CH:28]=[CH:29][N:30]=3)[CH2:19][C:20]3[N:24]([CH3:25])[CH:23]=[N:22][CH:21]=3)=[CH:13][C:9]=2[C:10](O)=[O:11])=[CH:4][CH:3]=1.Cl.[C:34]([O:38][C:39](=[O:46])[C@H:40]([CH2:42][CH2:43][S:44][CH3:45])[NH2:41])([CH3:37])([CH3:36])[CH3:35].C(Cl)CCl.C1C=CC2N(O)N=NC=2C=1>CN(C1C=CN=CC=1)C.CN(C=O)C>[F:1][C:2]1[CH:32]=[CH:31][C:5]([CH2:6][CH2:7][C:8]2[CH:16]=[CH:15][C:14]([O:17][CH:18]([C:26]3[S:27][CH:28]=[CH:29][N:30]=3)[CH2:19][C:20]3[N:24]([CH3:25])[CH:23]=[N:22][CH:21]=3)=[CH:13][C:9]=2[C:10]([NH:41][C@@H:40]([CH2:42][CH2:43][S:44][CH3:45])[C:39]([O:38][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:46])=[O:11])=[CH:4][CH:3]=1

参加物

7

反応物 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 13141795h-Met-otbu.hclHCID 183244782-(4-Fluorophenethyl)-5-[2-(1-methylimidazol-5-yl)1-(thiazol-2-yl)ethoxy]benzoic acid

生成物 1

HCID 57100633tert-butyl (2S)-2-{2-(4-fluorophenethyl)-5-[1-(thiazol-2-yl)-2-(1-methylimidazol-5-yl)ethoxy]benzoylamino}-4-methylsulfanylbutyrate

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6228Dimethylformamide溶媒

実験手順

A mixture of 2-(4-fluorophenethyl)-5-[2-(1-methylimidazol-5-yl)-1-(thiazol-2-yl)ethoxy]benzoic acid (0.74 g, 1.63 mmol), DMAP (1.0 g, 8.2 mmol), L-methionine tert-butyl ester HCl (1.0 g, 4.92 mmol), EDC (0.63 g, 3.27 mmol) and HOBT (0.22 g, 1.63 mmol) in DMF (50 ml) was stirred at ambient temperature under a nitrogen atmosphere for 16 hours. The reaction was evaporated to dryness and washed with aqueous citric acid (1M, 20 ml) and extracted with dichloromethane (20 ml). The extracts were washed with saturated brine and dried and applied directly onto a silica flash column which was eluted with ethyl acetate/methanol (9:1 and 4:1) to give tert-butyl (2S)-2- {2-(4-fluorophenethyl)-5-[1-(thiazol-2-yl)-2-(1-methylimidazol-5-yl)ethoxy]benzoylamino}-4-methylsulfanylbutyrate. The product was dissolved in ethyl acetate and treated with 1M ethereal HCl (10 ml). The resulting solid was isolated by centrifuging, flirther washing with diethyl ether and finally drying under high vacuum to give tert-butyl (2S)-2-{2-(4-fluorophenethyl)-5-[1-(thiazol-2-yl)-2-(1-methylimidazol-5-yl)ethoxy]benzoylamino}-4-methylsulfanylbutyrate as a white solid, (0.57 g, 54% Yield).

後処理

  1. customThe reaction was evaporated to dryness
  2. washwashed with aqueous citric acid (1M, 20 ml)
  3. extractionextracted with dichloromethane (20 ml)
  4. washThe extracts were washed with saturated brine
  5. customdried
  6. washwas eluted with ethyl acetate/methanol (9:1 and 4:1)

出典と根拠

ORDレコード
ord-17a109ca2faf4735830bad7657aaf5aa
出典データセット
uspto-grants-2002_01
特許番号
US06342765B1

反応ノート

読み込み中…