1,8-Diazabicyclo(5.4.0)undec-7-ene → 2-Tert-butoxycarbonylamino-3-{(s)-2-[4-(3,4-dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxin-6-yl}-acrylic acid methyl ester

HRID 391778

반응식

HRID 391778 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([CH:25]=[CH:26][C:27]=1[Cl:28])[CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([C@@H:13]2[O:18][C:17]3[CH:19]=[CH:20][C:21]([CH:23]=O)=[CH:22][C:16]=3[O:15][CH2:14]2)=[CH:9][CH:8]=1.C1CCN2C(=NCCC2)CC1.[CH3:40][C:41]([O:44][C:45]([NH:47][CH:48](P(OC)(OC)=O)[C:49]([O:51][CH3:52])=[O:50])=[O:46])([CH3:43])[CH3:42]>C(Cl)Cl.O>[CH3:52][O:51][C:49](=[O:50])[C:48]([NH:47][C:45]([O:44][C:41]([CH3:40])([CH3:42])[CH3:43])=[O:46])=[CH:23][C:21]1[CH:20]=[CH:19][C:17]2[O:18][C@@H:13]([C:10]3[CH:9]=[CH:8][C:7]([O:6][CH2:5][C:4]4[CH:25]=[CH:26][C:27]([Cl:28])=[C:2]([Cl:1])[CH:3]=4)=[CH:12][CH:11]=3)[CH2:14][O:15][C:16]=2[CH:22]=1

참가 물질

6

반응물 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 397380Methyl ((tert-butoxy(hydroxy)methylidene)amino)(dimethoxyphosphoryl)acetateHCID 58327463(S)-2-(4-((3,4-dichlorobenzyl)oxy)phenyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-carbaldehyde

생성물 1

HCID 667194932-Tert-butoxycarbonylamino-3-{(s)-2-[4-(3,4-dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxin-6-yl}-acrylic acid methyl ester수율 85.8%

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매3회

실험 절차

(S)-2-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxine-6-carbaldehyde (9.9 g) was dissolved in 80 mL dry DCM under nitrogen at rt and 7.2 mL DBU (7.33 g) was added by syringe. 7.44 g of Boc-phosphonoglycine trimethyl ester in 40 mL dry DCM was added by syringe all at once and the mixture stirred at rt for 18 h. It was then diluted with 0.5 L each of DCM and water and extracted, and the organic layer was dried with brine and Na2SO4 and evaporated. The residue was purified by crystallization from EtOAc/hexanes to give 12 g desired product after drying under vacuum. 1H NMR (400 MHz, CDCl3): 7.54 (d, 1H), 7.46 (d, 1H), 7.34 (m, 2H), 7.28-7.24 (m, 1H), 7.23-7.17 (m, 2H), 7.11 (m, 1H), 6.98 (m, 2H), 6.93 (d, 1H), 5.10 (m, 1H), 5.03 (s, 2H), 4.32 (m, 1H), 4.01 (m, 1H), 3.84 (s, 3H), 1.44 (s, 9H).

후처리

  1. extractionextracted
  2. dry with materialthe organic layer was dried with brine and Na2SO4
  3. customevaporated
  4. customThe residue was purified by crystallization from EtOAc/hexanes

출처 및 근거

ORD 기록
ord-168b7831b4e04e5dabd2bcfc5fa6f2f3
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08383644B2

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