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

HRID 391822

반응식

HRID 391822 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:8]=[C:9]([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:10]=[CH:11][CH:12]=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>[CH3:52][O:51][C:49](=[O:50])[C:48]([NH:47][C:45]([O:44][C:41]([CH3:42])([CH3:40])[CH3:43])=[O:46])=[CH:23][C:21]1[CH:20]=[CH:19][C:17]2[O:18][C@@H:13]([C:9]3[CH:10]=[CH:11][CH:12]=[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:8]=3)[CH2:14][O:15][C:16]=2[CH:22]=1

참가 물질

5

반응물 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 397380Methyl ((tert-butoxy(hydroxy)methylidene)amino)(dimethoxyphosphoryl)acetateHCID 58327098(S)-2-[3-(3,4-Dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxine-6 carbaldehyde

생성물 1

HCID 667194902-Tert-butoxycarbonylamino-3-{(s)-2-[3-(3,4-dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxin-6-yl}-acrylic acid methyl ester수율 60.7%

시약·촉매·용매 1

HCID 6344Dichloromethane용매4회

실험 절차

(S)-2-[3-(3,4-Dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxine-6 carbaldehyde (2.1 g) was dissolved in 8 mL dry DCM under nitrogen at rt and DBU (1.61 g) was added by syringe. A solution of Boc-phosphonoglycine trimethyl ester (1.58 g) in 4 mL of dry DCM was added to the reaction mixture and stirred at rt. for 12 hours. Reaction mixture was directly loaded on to silica gel column (40% hexanes in DCM to DCM) gave 1.8 g pure product. 1H NMR (400 MHz, CDCl3): 7.55 (d, 1H), 7.46 (d, 1H), 7.32-7.38 (m, 1H), 7.18-7.28 (m, 3H), 7.10-7.15 (m, 1H), 6.94-7.06 (m, 4H), 5.13 (m, 1H), 5.03 (s, 2H), 4.36 (m, 1H), 4.01 (m, 1H), 3.84 (s, 3H), 1.44 (s, 9H). LCMS (m/z): 587.

후처리

  1. customReaction mixture

출처 및 근거

ORD 기록
ord-eb7c5633f005477d936b7c655d0df41b
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08383644B2

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