Dicyclohexylcarbodiimide → HCID 131714718, 화합물
반응식
[NH:1]([C:21]([O:23][CH2:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)=[O:22])[C@H:2]([C:6]([NH:8][C@H:9]([C:18](O)=[O:19])[CH2:10][C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=1)=[O:7])[CH:3]([CH3:5])[CH3:4].C1C=CC2N(O)N=NC=2C=1.[NH2:41][C@H:42]([C:55]([O:57][CH3:58])=[O:56])[CH2:43][CH2:44][CH2:45][CH2:46][NH:47][C:48]([O:50][C:51]([CH3:54])([CH3:53])[CH3:52])=[O:49].C1CCC(N=C=NC2CCCCC2)CC1>CN(C=O)C.O>[NH:1]([C:21]([O:23][CH2:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)=[O:22])[C@H:2]([C:6]([NH:8][C@H:9]([C:18]([NH:41][C@H:42]([C:55]([O:57][CH3:58])=[O:56])[CH2:43][CH2:44][CH2:45][CH2:46][NH:47][C:48]([O:50][C:51]([CH3:53])([CH3:52])[CH3:54])=[O:49])=[O:19])[CH2:10][C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=1)=[O:7])[CH:3]([CH3:5])[CH3:4]참가 물질
7
실험 절차
13.8 g of Z-Val-Tyr-OH [R. Schwyzer et al., Helv. Chim. acta. 41, 1273 (1958)] and 5.1 g of HOBt×H2O are dissolved in 100 ml of DMF and there is added thereto the above solution of H-Lys(Boc)-OMe in a small amount of DMF. The whole is cooled to 0°, 7.6 g of DCCI are added and the whole is stirred for 6 hours at 0° and for 10 hours at room temperature. The DCH which has separated out is filtered off and the filtrate is concentrated to dryness. Purification is carried out by triturating with diisopropyl ether and by dissolving and reprecipitating from trifluoroethanol/ethyl acetate/petroleum ether, yielding Z-Val-Tyr-Lys(Boc)-OMe; Rf (F)=0.39.
후처리
- additionthere is added
- temperatureThe whole is cooled to 0°
- customThe DCH which has separated out
- filtrationis filtered off
- concentrationthe filtrate is concentrated to dryness
- customPurification
- customby triturating with diisopropyl ether
- dissolutionby dissolving
- customreprecipitating from trifluoroethanol/ethyl acetate/petroleum ether
출처 및 근거
- ORD 기록
- ord-b1d69b1ae4774143b27710c1ba13476e
- 출처 데이터셋
- uspto-grants-1986_06
- 특허 번호
- US04595677
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