Methyl iodide → HCID 86705248, compound

HRID 879202Notes

Reaction equation

[OH:1][C@H:2]1[C@H:7]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12])[CH:6]=[C:5]([C:16]2[CH:21]=[CH:20][N:19]=[CH:18][C:17]=2[N+:22]([O-:24])=[O:23])[CH2:4][C@@H:3]1[CH3:25].I[CH3:27]>C1COCC1.[Ag]=O>[CH3:27][O:1][C@H:2]1[C@H:7]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:12])([CH3:13])[CH3:14])[CH:6]=[C:5]([C:16]2[CH:21]=[CH:20][N:19]=[CH:18][C:17]=2[N+:22]([O-:24])=[O:23])[CH2:4][C@@H:3]1[CH3:25]

Participants

Conditions

Temperature: 45 °C

Procedure

(+/−)-Tert-butyl (1R,5S,6R)-6-hydroxy-5-methyl-3-(3-nitropyridin-4-yl)cyclohex-2-enylcarbamate (1.0 equiv.) was suspended in iodomethane (100.0 equiv.). Silver oxide (6.0 equiv.) was added to the mixture and the reaction vessel was wrapped in foil (kept dark) and allowed to stir 45° C. for 10 hrs. The reaction was diluted with THF and filtered through a pad of celite. The celite cake was further washed with MeOH. The organics were concentrated and the crude was taken up in DCM, washed with NaHCO3(aq.), dried over Na2SO4, filtered and concentrated. The crude was loaded onto silica gel and purified via ISCO to yield (+/−)-tert-butyl ((1R,5S,6R)-6-methoxy-5-methyl-3-(3-nitropyridin-4-yl)cyclohex-2-en-1-yl)carbamate in 35% yield. LC/MS (m/z)=364.1 (MH+), Rt=0.89 min.

Workup

filtrationfiltered through a pad of celite
washThe celite cake was further washed with MeOH
concentrationThe organics were concentrated
washwashed with NaHCO3(aq.)
dry with materialdried over Na2SO4
filtrationfiltered
concentrationconcentrated
custompurified via ISCO

Sources & evidence

ORD record: ord-164d5609b02a47fd8766ffa8ed241faa
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08987457B2

Reaction notes

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