Hydrochloric Acid → HCID 10181383, compound

HRID 966476Notes

Reaction equation

HRID 966476 reaction equation
[CH2:1]([O:8][C:9]([C:11]1[C:19]2[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH2:21][CH2:22]Cl)[CH:18]=2)[NH:13][C:12]=1[CH3:24])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:25][C:26]1([CH3:33])[C:30]([CH3:32])([CH3:31])[CH2:29][NH:28][CH2:27]1.Cl>C(#N)C.C(Cl)Cl>[CH2:1]([O:8][C:9]([C:11]1[C:19]2[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH2:21][CH2:22][N:28]3[CH2:29][C:30]([CH3:32])([CH3:31])[C:26]([CH3:33])([CH3:25])[CH2:27]3)[CH:18]=2)[NH:13][C:12]=1[CH3:24])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 223118013,3,4,4-TetramethylpyrrolidineHCID 23393871HCID 23393871, compound

Product 1

HCID 10181383HCID 10181383, compoundYield 42%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Procedure

A mixture of 5-(2-chloro-ethoxy)-2-methyl-1H-indole-3-carboxylic acid benzyl ester (Example 1, Step A, 0.300 g, 0.873 mmol), 3,3,4,4-tetramethyl-pyrrolidine; hydrochloride (0.571 g, 3.49 mmol), K2CO2 (0.724 g, 5.234 mmol), and KI (0.014 g, 0.087 mmol) in 17.5 mL of acetonitrile was heated at reflux for 24 hours. The reaction mixture was cooled to room temperature, diluted with CH2Cl2 (50 mL) and washed with water (2×20 mL). The organic layer was dried over MgSO4 and concentrated to give 0.379 g (42.0%) of a white solid: mp 181-182° C.;IR(KBr)3283, 2961, 1671, 1652, 1457, 1171, 1074 cm−1; 1HNMR (400 MHz, DMSO-d6) δ 0.85 (s, 12H, NCH2C(CH3)2), 2.46 (s, 3H, CCH3), 2.60 (s, 4H, NCH2C(CH3)2), 2.81-2.84 (m, 2H, OCH2CH2),3.83 (t, J=6.12 Hz, 2H, OCH2CH2), 5.27 (s, 2H, OCH2Ar), 6.67 (dd, J=8.31, 3.20 Hz, 1H, ArH), 7.20 (d, J=8.40 Hz, 1H, ArH), 7.23-7.40 (m, 4H, ArH), 7.46 (d, J=7.89 Hz, 2H, ArH), 11.70 (s, 1H, NH); MS(APCI+): m/z 435.3 (MH+). Anal. Calcd for C27H34N2O3: C, 74.62; H, 7.89; N, 6.45. Found: C, 74.31; H, 7.98; N, 6.19.

Workup

  1. temperatureat reflux for 24 hours
  2. washwashed with water (2×20 mL)
  3. dry with materialThe organic layer was dried over MgSO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-a98e2c1838084f62b492a519c5e49c32
Source dataset
uspto-grants-2005_10
Patent number
US06951848B2

Reaction notes

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