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Cesium carbonate → (2S,3R,6S)-4-[4-(4-hydroxy-4-methyl-pent-2-ynyloxy)-benzenesulfonyl]-2,6-dimethyl-morpholine-3-carboxylic acid methyl ester

HRID 1935342
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HRID 1935342 반응식
[CH3:1][O:2][C:3]([C@H:5]1[C@H:10]([CH3:11])[O:9][C@@H:8]([CH3:12])[CH2:7][N:6]1[S:13]([C:16]1[CH:21]=[CH:20][C:19]([OH:22])=[CH:18][CH:17]=1)(=[O:15])=[O:14])=[O:4].I[CH2:24][C:25]#[C:26][C:27]([CH3:30])([OH:29])[CH3:28].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O.C(OCC)C>[CH3:1][O:2][C:3]([C@H:5]1[C@H:10]([CH3:11])[O:9][C@@H:8]([CH3:12])[CH2:7][N:6]1[S:13]([C:16]1[CH:17]=[CH:18][C:19]([O:22][CH2:24][C:25]#[C:26][C:27]([OH:29])([CH3:30])[CH3:28])=[CH:20][CH:21]=1)(=[O:15])=[O:14])=[O:4]
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참가 물질

6

반응물 3

HCID 10796Cesium carbonateHCID 120166895-Iodo-2-methyl-pent-3-yn-2-olHCID 12016690(2S,3R,6S)-4-(4-Hydroxy-benzenesulfonyl)-2,6-dimethyl-morpholine-3-carboxylic acid methyl ester

생성물 1

HCID 12016682(2S,3R,6S)-4-[4-(4-hydroxy-4-methyl-pent-2-ynyloxy)-benzenesulfonyl]-2,6-dimethyl-morpholine-3-carboxylic acid methyl ester

시약·촉매·용매 2

HCID 3283
Diethyl Ether
용매
HCID 6228Dimethylformamide용매

실험 절차

(2S,3R,6S)-4-(4-Hydroxy-benzenesulfonyl)-2,6-dimethyl-morpholine-3-carboxylic acid methyl ester, (200 mg, 0.607 mmol) (prepared according to the methods described in U.S. patent application Ser. No. 60/096256, filed Aug. 12, 1998) was dissolved in dimethyl formamide (6 mL). 5-Iodo-2-methyl-pent-3-yn-2-ol (272 mg, 1.214 mmol) and cesium carbonate (593 mg, 1.821 mmol) were added and the reaction stirred at room temperature for 4 hours. The reaction was diluted with diethyl ether (100 mL) and washed with water (5 times 10 mL) and brine (30 mL), dried over anhydrous magnesium sulfate and concentrated in vacuo to yield the title compound. The crude material was used directly in the preparation of Example 1 without further purification. 1HNMR (400 MHz, CDCl3): δ=7.70 (d, J=8.9 Hz, 2H), 7.0 (d, J=8.9 Hz, 2H), 4.74 (bs, 2H), 4.50 (q, J=6.6 Hz, 1H), 4.26 (s, 1H), 3.92 (m, 1H), 3.54 (s, 3H), 3.50 (m, 1H), 2.93 (dd, J=12.3 and 11.0 Hz, 1H), 1.48(s, 6H), 1.44 (d, J=5.4 Hz, 3H), 1.01(d, J=6.0, 3H). MS: Calculated for C20H27NO7S (M−OH): 408.15. Found: 408.1.

후처리

  1. washwashed with water (5 times 10 mL) and brine (30 mL)
  2. dry with materialdried over anhydrous magnesium sulfate
  3. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-75a4b9ea2cdc42348551099dd183f4ae
출처 데이터셋
uspto-grants-2002_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06387901B1

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