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Formaldehyde → 4-(1-(4-Cyclobutyl-2-methyl-5-(5-methyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridin-2-yl)benzoyl)piperidin-4-yl)benzonitrile

HRID 541439
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HRID 541439 반응식
[CH:1]1([C:5]2[C:26]([C:27]3[NH:35][C:30]4[CH2:31][NH:32][CH2:33][CH2:34][C:29]=4[N:28]=3)=[CH:25][C:8]([C:9]([N:11]3[CH2:16][CH2:15][CH:14]([C:17]4[CH:24]=[CH:23][C:20]([C:21]#[N:22])=[CH:19][CH:18]=4)[CH2:13][CH2:12]3)=[O:10])=[C:7]([CH3:36])[CH:6]=2)[CH2:4][CH2:3][CH2:2]1.[BH-](OC(C)=O)(OC(C)=O)O[C:39](C)=O.[Na+].C=O>O1CCCC1>[CH:1]1([C:5]2[C:26]([C:27]3[NH:35][C:30]4[CH2:31][N:32]([CH3:39])[CH2:33][CH2:34][C:29]=4[N:28]=3)=[CH:25][C:8]([C:9]([N:11]3[CH2:12][CH2:13][CH:14]([C:17]4[CH:24]=[CH:23][C:20]([C:21]#[N:22])=[CH:19][CH:18]=4)[CH2:15][CH2:16]3)=[O:10])=[C:7]([CH3:36])[CH:6]=2)[CH2:2][CH2:3][CH2:4]1
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참가 물질

5

반응물 3

HCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 682890604-(1-(4-Cyclobutyl-2-methyl-5-(4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridin-2-yl)benzoyl)piperidin-4-yl)benzonitrile

생성물 1

HCID 665485004-(1-(4-Cyclobutyl-2-methyl-5-(5-methyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridin-2-yl)benzoyl)piperidin-4-yl)benzonitrile수율 16%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매

실험 절차

To a solution of 4-(1-(4-cyclobutyl-2-methyl-5-(4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridin-2-yl)benzoyl)piperidin-4-yl)benzonitrile (406.3, 190 mg, 0.30 mmol, 1.00 equiv, 75%) in tetrahydrofuran (10 mL) were added NaBH(OAc)3 (252 mg, 1.13 mmol, 3.00 equiv, 95%) and HCHO (37%) (2.2 mL, 2.00 equiv). The resulting mixture was stiffed for 2 h at 40° C. in an oil bath and then concentrated under reduced pressure. The residue was diluted with dichloromethane and washed with aqueous saturated sodium bicarbonate and brine. The organic layer was dried (Na2SO4) and concentrated. The crude product (˜80 mg) was purified by Prep-HPLC with the following conditions (1#-Pre-HPLC-001(SHIMADZU)): Column, Xbridge Prep C18, 5 um, 19*150 mm; mobile phase, water with 0.03% NH3H2O and CH3CN (36% CH3CN up to 48% in 8 min, up to 100% in 1 min, down to 36% in 1.5 min); Detector, Waters 2489 254&220 nm. The fractions containing pure compound were combined and lyophilized to yield 23.4 mg (16%) of the title compound as a white solid. m/z (ES+) 494 (M+H)+. 1H NMR (300 MHz, CD3OD): δ 7.69 (d, J=6.0 Hz, 2H), 7.48 (d, J=6.0 Hz, 2H), 7.37-7.31 (m, 1H), 7.26 & 7.15 (2 singlets, amide rotamers, Ar—H, 1H), ˜4.9 (1H partially obscured by water peak), 4.02-3.90 (m, 1H), 3.73-3.57 (m, 1H), 3.57 (s, 2H), 3.34-3.21 (m, 1H), 3.06-2.94 (m, 2H), 2.90-2.77 (m, 4H), 2.54 (s, 3H), 2.45 & 2.34 (2 singlets, amide rotamers, ArCH3, 3H), 2.11-1.86 (m, 6H), 1.86-1.54 (m, 4H).

후처리

  1. concentrationconcentrated under reduced pressure
  2. additionThe residue was diluted with dichloromethane
  3. washwashed with aqueous saturated sodium bicarbonate and brine
  4. dry with materialThe organic layer was dried (Na2SO4)
  5. concentrationconcentrated
  6. customThe crude product (˜80 mg) was purified by Prep-HPLC with the following conditions (1#-Pre-HPLC-001(SHIMADZU))
  7. waitmobile phase, water with 0.03% NH3H2O and CH3CN (36% CH3CN up to 48% in 8 min
  8. waitup to 100% in 1 min
  9. waitdown to 36% in 1.5 min)
  10. additionThe fractions containing pure compound

출처 및 근거

ORD 기록
ord-cc948f41c4ee49628f1f8625b907be96
출처 데이터셋
uspto-grants-2014_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08871790B2

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