(1R,2S,7R,8S)-3-(4-Fluoro-benzyl)-6-hydroxy-5-(7-iodo-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-3-yl)-3-aza-tricyclo[6.2.1.02,7]undec-5-en-4-one → (1R,2S,7R,8S)-3-[3-(4-fluoro-benzyl)-6-hydroxy-4-oxo-3-aza-tricyclo [6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1lambda6 benzo[1,2,4]thiadiazine-7-carbonitrile

HRID 2408768Notes

Reaction equation

HRID 2408768 reaction equation
[F:1][C:2]1[CH:34]=[CH:33][C:5]([CH2:6][N:7]2[C:16](=[O:17])[C:15]([C:18]3[NH:23][C:22]4[CH:24]=[CH:25][C:26](I)=[CH:27][C:21]=4[S:20](=[O:30])(=[O:29])[N:19]=3)=[C:14]([OH:31])[C@H:13]3[C@@H:8]2[C@H:9]2[CH2:32][C@@H:12]3[CH2:11][CH2:10]2)=[CH:4][CH:3]=1.[Cu][C:36]#[N:37]>CN(C)C=O.C(OCC)(=O)C>[F:1][C:2]1[CH:34]=[CH:33][C:5]([CH2:6][N:7]2[C:16](=[O:17])[C:15]([C:18]3[NH:23][C:22]4[CH:24]=[CH:25][C:26]([C:36]#[N:37])=[CH:27][C:21]=4[S:20](=[O:30])(=[O:29])[N:19]=3)=[C:14]([OH:31])[C@H:13]3[C@@H:8]2[C@H:9]2[CH2:32][C@@H:12]3[CH2:11][CH2:10]2)=[CH:4][CH:3]=1

Participants

5

Reactant 2

HCID 136395898(1R,2S,7R,8S)-3-(4-Fluoro-benzyl)-6-hydroxy-5-(7-iodo-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-3-yl)-3-aza-tricyclo[6.2.1.02,7]undec-5-en-4-oneHCID 178418546HCID 178418546, compound

Product 1

HCID 136395899(1R,2S,7R,8S)-3-[3-(4-fluoro-benzyl)-6-hydroxy-4-oxo-3-aza-tricyclo [6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1lambda6 benzo[1,2,4]thiadiazine-7-carbonitrileYield 96.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

(1R,2S,7R,8S)-3-(4-Fluoro-benzyl)-6-hydroxy-5-(7-iodo-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-3-aza-tricyclo[6.2.1.02,7]undec-5-en-4-one (0.5 g, 0.84 mmol) and copper(I) cyanide (0.151 g, 1.7 mmol) were suspended in anhydrous N,N-dimethylformamide (4 mL). The mixture was stirred at 120° C., under nitrogen for 24 h. Upon cooling, the mixture was diluted with ethyl acetate (20 mL) and washed with saturated aqueous ammonium chloride solution (3×15 mL). The organic phase was passed through a short plug of Celite followed by a short plug of silica gel (Merck silica gel 60, 40-63 μm), eluting with ethyl acetate. The filtrate was concentrated in vacuo to afford a yellow solid. Purification by flash column chromatography (Teledyne Isco RediSep column; 25-100% ethyl acetate in hexanes) followed by concentration in vacuo afforded the desired product, (1R,2S,7R,8S)-3-[3-(4-fluoro-benzyl)-6-hydroxy-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazine-7-carbonitrile (0.398 g, 0.808 mmol, 96%), as a white, brittle foam. 1H NMR (400 MHz, DMSO-d6) δ: 1.15-1.15 (1H, m), 1.34-1.61 (5H, m), 2.48-2.48 (1H, m), 2.60 (1H, d, J=3.3 Hz), 2.90 (1H, d, J=9.4 Hz), 3.48 (1H, d, J=9.4 Hz), 4.38 (1H, d, J=15.6 Hz), 4.96 (1H, d, J=15.4 Hz), 7.11-7.16 (2H, m), 7.31 (2H, dd, J1=8.6 Hz, J2=5.4 Hz), 7.60 (1H, d, J=8.6 Hz), 8.02 (1H, dd, J1=8.6 Hz, J2=2.5 Hz), 8.37 (1H, s). LC-MS (ESI) calculated for C25H21FN4O4S 492.13. found 493.1 [M+H+].

Workup

  1. temperatureUpon cooling
  2. washwashed with saturated aqueous ammonium chloride solution (3×15 mL)
  3. washeluting with ethyl acetate
  4. concentrationThe filtrate was concentrated in vacuo
  5. customto afford a yellow solid
  6. customPurification by flash column chromatography (Teledyne Isco RediSep column; 25-100% ethyl acetate in hexanes)
  7. concentrationfollowed by concentration in vacuo

Sources & evidence

ORD record
ord-2ebe7a59f77f428aa6a25d8df69d4e69
Source dataset
uspto-grants-2014_08
Patent number
US08815847B2

Reaction notes

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