Triethylamine → 4-(4-ethyl-1-(pyrimidin-4-yl) piperidin-4-yl)-3,4-dihydropyrrolo[4,3,2-de][2,6]naphthyridin-5(1H)-one

HRID 1968194Notes

Reaction equation

[CH2:1]([C:3]1([N:9]2[CH2:18][C:17]3=[CH:19][NH:20][C:15]4[C:16]3=[C:11]([CH:12]=[CH:13][N:14]=4)[C:10]2=[O:21])[CH2:8][CH2:7][NH:6][CH2:5][CH2:4]1)[CH3:2].C(N(CC)CC)C.Cl[C:30]1[CH:35]=[CH:34][N:33]=[CH:32][N:31]=1>CN(C=O)C>[CH2:1]([C:3]1([N:9]2[CH2:18][C:17]3=[CH:19][NH:20][C:15]4[C:16]3=[C:11]([CH:12]=[CH:13][N:14]=4)[C:10]2=[O:21])[CH2:8][CH2:7][N:6]([C:30]2[CH:35]=[CH:34][N:33]=[CH:32][N:31]=2)[CH2:5][CH2:4]1)[CH3:2]

Participants

Conditions

Temperature: 140 °C

Procedure

4-(4-Ethylpiperidin-4-yl)-3,4-dihydropyrrolo[4,3,2-de][2,6]naphthyridin-5(1H)-one (10 mg, 0.035 mmol), triethylamine (0.049 mL, 0.352 mmol), and 4-chloropyrimidine (8 mg, 0.070 mmol) were dissolved in DMF (1.5 mL) and heated under microwave irradiation at 140° C. for 30 min. The solution was concentrated in vacuo and purified via preparative HPLC 10% to 40% B in A and gave 6.5 mg of the title compound as its TFA salt. 1H NMR (400 MHz, CD3OD) δ 8.66 (s, 1H), 8.14 (dd, 1H, J=7.6, 1.3 Hz), 7.51 (s, 1H), 7.37 (s, 1H), 7.11 (d, 1H, J=7.5 Hz), 5.14 (s, 2H), 4.27 (m, 1H), 4.11 (m, 1H), 3.86-3.87 (m, 1H), 3.80-3.82 (m, 1H), 2.86 (m, 1H), 2.73 (m, 1H), 2.38 (m, 1H), 2.24-2.31 (m, 4H), 0.99 (t, 3H, J=7.6 Hz). MS (ES) [M+H] found 363.

Workup

concentrationThe solution was concentrated in vacuo
custompurified via preparative HPLC 10% to 40% B in A

Sources & evidence

ORD record: ord-f1f5c1fbb4004ba0a5b0b5fc02681830
Source dataset: uspto-grants-2013_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08420816B2

Reaction notes

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