Hydrochloric Acid → 4-(Benzyloxy)-1-(5-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-7-yl)pyridin-2(1H)-one hydrochloride

HRID 1020525

反応式

HRID 1020525 の反応式
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]([C:15]2[CH:16]=[CH:17][C:18]3[C:19]4[CH2:28][N:27](C(OC(C)(C)C)=O)[CH2:26][CH2:25][C:20]=4[N:21]([CH3:24])[C:22]=3[CH:23]=2)[C:11](=[O:36])[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[ClH:37]>CO.CCOCC>[ClH:37].[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]([C:15]2[CH:16]=[CH:17][C:18]3[C:19]4[CH2:28][NH:27][CH2:26][CH2:25][C:20]=4[N:21]([CH3:24])[C:22]=3[CH:23]=2)[C:11](=[O:36])[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 2

HCID 313Hydrochloric AcidHCID 57950332tert-Butyl 7-(4-(benzyloxy)-2-oxopyridin-1(2H)-yl)-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate

生成物 1

HCID 441947474-(Benzyloxy)-1-(5-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-7-yl)pyridin-2(1H)-one hydrochloride収率 85%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 3283Diethyl Ether溶媒

実験手順

tert-Butyl 7-(4-(benzyloxy)-2-oxopyridin-1(2H)-yl)-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (12.0 g, 24.7 mmol) was dissolved in MeOH (100 mL), and 2 N HCl in Et2O (300 mL) was added. The reaction was allowed to proceed for 18 h. The mixture was concentrated, and the residue was partitioned between CH2Cl2 and sat. Na2CO3 solution. The organic phase was removed, and the aqueous phase was back extracted with CH2Cl2. The combined organic extracts were dried over Na2SO4, filtered and concentrated to dryness providing the free base of the title compound (8.1 g, 85%) as a yellow solid. A portion of the free base was converted to the HCl salt for biological testing. Free base: 1H NMR (500 MHz, CDCl3) δ 7.47-7.34 (m, 6H), 7.32-7.28 (m, 2H), 6.98 (d, J=7.1 Hz, 1H), 6.07 (d, J=2.6 Hz, 1H), 6.04 (dd, J=7.5, 2.6 Hz, 1H), 5.05 (s, 2H), 4.15 (s, 2H), 3.61 (s, 3H), 3.34 (br s, 2H), 2.78 (br s, 2H). HCl salt: melting point (mp) 296-302° C.; 1H NMR (500 MHz, CD3OD) δ 7.61-7.57 (2×d, 2H), 7.47-7.46 (m, 3H), 7.43-7.40 (m, 2H), 7.37-7.34 (m, 1H), 7.05 (dd, J=8.3, 1.7 Hz, 1H), 6.33 (dd, J=7.5, 2.7 Hz, 1H), 6.16 (d, J=2.6 Hz, 1H), 5.19 (s, 2H), 4.57 (s, 2H), 3.73 (s, 3H), 3.67 (t, J=6.2 Hz, 2H), 3.20 (t, J=6.1 Hz, 2H); ESI MS m/z 386 [M+H]+; HPLC (Method A) 95.7% (AUC), tR=13.6 min.

後処理

  1. concentrationThe mixture was concentrated
  2. customthe residue was partitioned between CH2Cl2 and sat. Na2CO3 solution
  3. customThe organic phase was removed
  4. extractionthe aqueous phase was back extracted with CH2Cl2
  5. dry with materialThe combined organic extracts were dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated to dryness

出典と根拠

ORDレコード
ord-f60f2639566d413cbac09484a2463d8f
出典データセット
uspto-grants-2014_05
特許番号
US08716308B2

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