N-[Nalpha-(9-fluorenylmethoxycarbonyl)-O-tert-butyl-L-seryl]dopamine → HCID 178450475, Verbindung
Reaktionsgleichung
C1C2C(CO[C:16]([NH:18][C@H:19]([C:26]([NH:28][CH2:29][CH2:30][C:31]3[CH:38]=[CH:37][C:35]([OH:36])=[C:33]([OH:34])[CH:32]=3)=[O:27])[CH2:20][O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:17])C3C(=CC=CC=3)C=2C=CC=1.[OH:39][C:40]1[C:49]2[C:44](=[C:45]([OH:50])[CH:46]=[CH:47][CH:48]=2)[N:43]=[C:42](C(O)=O)[CH:41]=1>>[OH:39][C:40]1[C:49]2[C:44](=[C:45]([OH:50])[CH:46]=[CH:47][CH:48]=2)[N:43]=[C:42]([C:16]([NH:18][C@H:19]([C:26]([NH:28][CH2:29][CH2:30][C:31]2[CH:38]=[CH:37][C:35]([OH:36])=[C:33]([OH:34])[CH:32]=2)=[O:27])[CH2:20][O:21][C:22]([CH3:23])([CH3:24])[CH3:25])=[O:17])[CH:41]=1Komponenten
3
Versuchsvorschrift
The title compound was prepared from N-[Nα-(9-fluorenylmethoxycarbonyl)-O-tert-butyl-L-seryl]dopamine (676 mg, 1.3 mmol, example 42, step A) as described for example 42 (step B) using 4,8-dihydroxyquinoline-2-carboxylic acid (402 mg, 1.96 mmol) instead of caffeic acid. The crude material was purified by flash chromatography using successively 30%, 40% and 70% EtOAc/CH2Cl2/1% AcOH as the eluent. The title compound was obtained as a yellow powder (130 mg, 21%).
Aufarbeitung
- customThe crude material was purified by flash chromatography