Potassium Carbonate → HCID 89814708, 화합물

HRID 1496798노트

반응식

HRID 1496798 반응식
C(OC(C[N:7]1[C:16](=[O:17])[CH:15]2[CH:10]([CH:11]3[C:18](=[C:19]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][N:27]=4)[C:20]4[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=4)[CH:14]2[C:13]([C:32]([OH:45])([C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][N:40]=2)[C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)=[CH:12]3)[C:8]1=[O:9])=O)C.[C:46]([O:52][CH2:53]Cl)(=[O:51])[C:47]([CH3:50])([CH3:49])[CH3:48].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[OH:45][C:32]([C:13]1[CH:14]2[C:18](=[C:19]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][N:27]=3)[C:20]3[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=3)[CH:11]([CH:12]=1)[CH:10]1[C:8]([N:7]([CH2:53][O:52][C:46](=[O:51])[C:47]([CH3:50])([CH3:49])[CH3:48])[C:16](=[O:17])[CH:15]21)=[O:9])([C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][N:40]=1)[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 87885Chloromethyl pivalateHCID 89814504HCID 89814504, 화합물

생성물 1

HCID 89814708HCID 89814708, 화합물수율 48%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매2회

실험 절차

A similar procedure (Hursthouse, M. B.; Khan, A.; Marson, C. M.; Porter, R. A. Tetrahedron Lett 1995, 36, 33, 5979-5982) to that described for the preparation of 207 was followed using NRB (200 mg, 0.39 mmol) in dimethylformamide (2 mL), chloromethyl pivalate (41) (59 mg, 0.39 mmol) in dimethylformamide (0.5 mL), and potassium carbonate (54 mg, 0.39 mmol). Purification by flash chromatography (hexane/ethyl acetate 1:1) afforded 8 as a colourless solid (118 mg, 0.19 mmol, 48%). mp 95-98° C.; 1H NMR (400 MHz, CDCl3) δ 1.18-1.19 (8.4H, m, tBu), 1.25-1.26 (0.6H, m, tBu), 3.38 (0.2H, dd, J=7.9 and 4.5 Hz, W/H-3), 3.45 (0.5H, dd, J=7.9 and 4.5 Hz, Y/H-3), 3.51-3.59 (0.4H, m, 0.2H U/H-2 and U/H-3, 0.2H V/H-2), 3.63-3.64 (0.2H, m, W/H-4), 3.67-3.76 (0.9H, m, 0.2H V/H-3, 0.2H W/H-2 and 0.5H Y/H-2), 3.88-3.92 (0.3H, m, 0.1H U/H-1 and 0.2H V/H-1), 4.00-4.01 (0.5H, dt, J=4.5 and 1.3 Hz, Y/H-4), 4.20-4.21 (0.1H, m, U/H-4), 4.35-4.36 (0.2H, dt, J=4.5 and 1.3 Hz, V/H-4), 4.49-4.52 (0.7H, m, 0.2H W/H-1 and 0.5H Y/H-1), 5.26-5.29 (0.7H, m, CH2), 5.31-5.62 (3H, m, 1.3H CH2, 0.2H V/H-6, 0.5H Y/H-6 and 1H OH), 6.04-6.06 (0.3H, m, 0.1H U/H-6 and 0.211 W/H-6), 6.71-7.57 (16H, m, Ar), 8.42-8.50 (0.6H, m, 0.2H 2U/αPyr and 0.4H 2VαPyr), 8.54-8.55 (0.7H, m, 0.2H W/αPyr and 0.5H Y/αPyr), 8.61-8.63 (0.7H, m, 0.2H W/αPyr and 0.5H Y/αPyr); vmax(nujol)/cm−1 1140 and 1212 (C—O ester), 1586 (C═O imide), 1715 (C═O ester); m/z (FAB+) 626 (MH+, 67%), 120 (100); (Found: MH+ 626.2644, C39H36N3O5 requires 626.2655).

후처리

  1. customPurification by flash chromatography (hexane/ethyl acetate 1:1)

출처 및 근거

ORD 기록
ord-b39289bce3e147a4ac4aca85aaafb66c
출처 데이터셋
uspto-grants-2015_12
특허 번호
US09198420B2

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