1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 59668673, Verbindung

HRID 588951Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 588951
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([N:18]3[CH2:22][CH2:21][CH2:20][C@@:19]3([CH3:26])[C:23](O)=[O:24])=[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.Cl.[NH2:28][CH2:29][C:30]([C:32]1[CH:37]=[CH:36][C:35]([Br:38])=[CH:34][CH:33]=1)=[O:31].C1C=NC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CCN=C=NCCCN(C)C>CN(C=O)C.O>[Br:38][C:35]1[CH:36]=[CH:37][C:32]([C:30](=[O:31])[CH2:29][NH:28][C:23]([C@:19]2([CH3:26])[CH2:20][CH2:21][CH2:22][N:18]2[C:16]([O:15][CH2:14][CH:12]2[C:11]3[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=3[C:5]3[C:13]2=[CH:1][CH:2]=[CH:3][CH:4]=3)=[O:17])=[O:24])=[CH:33][CH:34]=1

Komponenten

8

Edukt 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 81531DiisopropylethylamineHCID 181649HOAtHCID 27982162-Amino-1-(4-bromophenyl)ethan-1-one hydrochlorideHCID 59772286(2S)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-2-methylpyrrolidine-2-carboxylic acid

Produkt 1

HCID 59668673HCID 59668673, VerbindungAusbeute 102 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To (S)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-2-methylpyrrolidine-2-carboxylic acid (intermediate LS30; 1.5 g; 4.3 mmol) in 50 mL DMF was added sequentially 2-amino-1-(4-bromophenyl)ethanone hydrochloride (1.2 g; 4.7 mmol), HOAT (290 mg; 2.1 mmol), Hunig's base (0.7 mL; 4.3 mmol) and EDCI (1.2 g; 6.4 mmol). After 1 h, the reaction mixture was poured into 150 mL water and allowed to stir for 15 min before filtering the resultant precipitate which was dissolved in dichloromethane and dried over magnesium sulfate. The dichloromethane mixture was filtered and applied to a Biotage 40 samplet. Chromatography on a 40M column (25 to 60% ethyl acetate/hexane over 1200 mL) provided (S)-(9H-fluoren-9-yl)methyl 2-(2-(4-bromophenyl)-2-oxoethylcarbamoyl)-2-methylpyrrolidine-1-carboxylate (intermediate LS31; 2.4 g; quant) as a yellow foam. LC (Cond'n 11): RT=3.75 min; MS: Anal. Calcd. for [M+H]+ C29H27BrN2O4: 547.1. found 547.0.

Aufarbeitung

  1. filtrationbefore filtering the resultant precipitate which
  2. dissolutionwas dissolved in dichloromethane
  3. dry with materialdried over magnesium sulfate
  4. filtrationThe dichloromethane mixture was filtered

Quellen und Nachweise

ORD-Eintrag
ord-eef67d4e5622404ba4a5a363c4dd2c29
Quelldatensatz
uspto-grants-2016_01
Patentnummer
US09227961B2

Notizen zur Reaktion

Wird geladen…