Phosphorus trichloride → N-(6-ethoxy-pyridin-3-yl)-2-[4-(1H-indol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-N-isopropyl-acetamide

HRID 914676Notes

Reaction equation

HRID 914676 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([CH2:10][CH:11]2[C:20]3[N:16]([C:17]([C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=4)=[N:18][N:19]=3)[C:15]3[CH:27]=[CH:28][CH:29]=[CH:30][C:14]=3[N:13]([CH2:31][C:32](O)=[O:33])[C:12]2=[O:35])=[CH:2]1.[CH2:36]([O:38][C:39]1[N:44]=[CH:43][C:42]([NH:45][CH:46]([CH3:48])[CH3:47])=[CH:41][CH:40]=1)[CH3:37].P(Cl)(Cl)Cl>ClC(Cl)C>[CH2:36]([O:38][C:39]1[N:44]=[CH:43][C:42]([N:45]([CH:46]([CH3:47])[CH3:48])[C:32](=[O:33])[CH2:31][N:13]2[C:12](=[O:35])[CH:11]([CH2:10][C:3]3[C:4]4[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=4)[NH:1][CH:2]=3)[C:20]3[N:16]([C:17]([C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=4)=[N:18][N:19]=3)[C:15]3[CH:27]=[CH:28][CH:29]=[CH:30][C:14]2=3)=[CH:41][CH:40]=1)[CH3:37]

Participants

5

Reactant 3

HCID 24387Phosphorus trichlorideHCID 58957938(6-Ethoxy-pyridin-3-yl)-isopropyl-amineHCID 68607281[4-(1H-indol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-acetic acid

Product 1

HCID 11505497N-(6-ethoxy-pyridin-3-yl)-2-[4-(1H-indol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-N-isopropyl-acetamideYield 20.9%

Reagents, catalysts & solvents 1

HCID 63651,1-DichloroethaneSolvent

Procedure

Following the procedure described for Example 2(A), [4-(1H-indol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-acetic acid (Preparation 15) (300 mg, 0.65 mmol) was reacted with (6-ethoxy-pyridin-3-yl)-isopropyl-amine (Preparation 2(B)) (117 mg, 0.65 mmol) and PCl3 in dichloroethane at 100° C. Purification by medium pressure chromatography eluting with a solvent gradient (5% of 0.5% NH4OH/MeOH in CH2Cl2 to 10% of 0.5% NH4OH/MeOH in CH2Cl2) provided 85.1 mg of N-(6-ethoxy-pyridin-3-yl)-2-[4-(1H-indol-3-ylmethyl)-5-oxo-1-phenyl-4,5-dihydro-2,3,6,10b-tetraaza-benzo[e]azulen-6-yl]-N-isopropyl-acetamide. 1H NMR (CD3OD) δ 8.05 (d, 1H), 7.62 (m, 3H), 7.38-7.52 (m, 6H), 7.24 (d, 1H), 7.11 (m, 2H), 6.99 (t, 1H), 6.89 (m, 3H), 4.78 (m, 1H), 4.53 (m, 1H), 4.35 (q, 2H), 4.12 (m, 1H), 3.88 (t, 1H), 3.78 (dd, 1H), 3.69 (dd, 1H), 1.38 (t, 3H), 0.99 (m, 6H); MS 626.7 (M+1), 624.6 (M−1).

Workup

  1. customPurification by medium pressure chromatography
  2. washeluting with a solvent gradient (5% of 0.5% NH4OH/MeOH in CH2Cl2 to 10% of 0.5% NH4OH/MeOH in CH2Cl2)

Sources & evidence

ORD record
ord-954e242a73f94b958ee094449c58cd20
Source dataset
uspto-grants-2007_09
Patent number
US07265104B2

Reaction notes

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