(2R)-2-pyrimidin-2-ylbut-3-yn-2-ol → (R)-9-(3-hydroxy-3-(pyrimidin-2-yl)but-1-yn-1-yl)-3-methyl-3,4,5,6-tetrahydro-4,6-methanobenzo[3,4]cyclohepta[1,2-d]imidazole-2-carboxamide

HRID 575447노트

반응식

HRID 575447 반응식
I[C:2]1[CH:3]=[CH:4][C:5]2[CH:18]3[CH2:19][CH:16]([CH2:17]3)[C:8]3[N:9]([CH3:15])[C:10]([C:12]([NH2:14])=[O:13])=[N:11][C:7]=3[C:6]=2[CH:20]=1.[N:21]1[CH:26]=[CH:25][CH:24]=[N:23][C:22]=1[C@:27]([OH:31])([C:29]#[CH:30])[CH3:28]>N1CCCCC1.[Cu]I.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[OH:31][C@:27]([C:22]1[N:21]=[CH:26][CH:25]=[CH:24][N:23]=1)([CH3:28])[C:29]#[C:30][C:2]1[CH:3]=[CH:4][C:5]2[CH:18]3[CH2:19][CH:16]([CH2:17]3)[C:8]3[N:9]([CH3:15])[C:10]([C:12]([NH2:14])=[O:13])=[N:11][C:7]=3[C:6]=2[CH:20]=1

참가 물질

6

반응 조건

온도
40 °C

실험 절차

To a solution 9-iodo-3-methyl-3,4,5,6-tetrahydro-4,6-methanobenzo[3,4]cyclohepta[1,2-d]imidazole-2-carboxamide (100 mg, 0.26 mmol) in piperidine (2 mL) was introduced (2R)-2-(pyrimidin-2-yl)but-3-yn-2-ol (156 mg, 1.05 mmol) and copper(I) iodide (2.5 mg, 0.01 mmol). The solution was de-oxygenated by nitrogen bubbling for five minutes, then tetrakis(triphenylphosphine)palladium(0) (15 mg, 0.01 mmol) added and bubbling continued for a further two minutes. The pressure tube was closed under an atmosphere of nitrogen and the reaction mixture warmed to 40° C. for 2.5 hr. After evaporation of the reaction mixture in vacuo, the residue was suspended in ethyl acetate (25 mL) and washed with saturated aqueous sodium bicarbonate (6 mL), water (2×10 mL) and brine (5 mL). The organic extract was dried over sodium sulfate, filtered, and the filtrate adsorbed onto silica gel in vacuo. Purification of the dry-loaded material by silica gel flash column chromatography (eluent: heptane/ethyl acetate gradient) was followed by suspension of the product in acetonitrile (0.8 mL). The solid was collected by filtration to furnish the title compound (51 mg, 0.13 mmol, 50%) as an off-white solid: 1H NMR (500 MHz, CDCl3) δ 1.69 (d, J=10.72 Hz, 2H), 2.06 (br. s., 2H), 2.93 (qd, J=7.99, 3.15 Hz, 2H), 3.46 (td, J=7.25, 3.78 Hz, 1H), 3.62 (td, J=8.12, 3.63 Hz, 1H), 3.99 (s, 3H), 5.16-5.44 (m, 2H), 6.99 (d, J=7.57 Hz, 1H), 7.15 (d, J=7.57 Hz, 1H), 7.33 (br. s., 1H), 7.52 (br. s., 1H), 8.49 (s, 1H), 8.85 (br. s., 2H); M+H=400.

후처리

  1. custombubbling
  2. waitcontinued for a further two minutes
  3. customThe pressure tube was closed under an atmosphere of nitrogen
  4. customAfter evaporation of the reaction mixture in vacuo
  5. washwashed with saturated aqueous sodium bicarbonate (6 mL), water (2×10 mL) and brine (5 mL)
  6. extractionThe organic extract
  7. dry with materialwas dried over sodium sulfate
  8. filtrationfiltered
  9. customPurification of the dry-loaded material by silica gel flash column chromatography (eluent: heptane/ethyl acetate gradient)
  10. additionwas followed by suspension of the product in acetonitrile (0.8 mL)
  11. filtrationThe solid was collected by filtration

출처 및 근거

ORD 기록
ord-f66fc475146348759c19b712ce436cfc
출처 데이터셋
uspto-grants-2015_05
특허 번호
US09034866B2

반응 노트

불러오는 중…