4-Methylmorpholine → (S)-1-((R)-2-(6-chloro-3-oxopyrrolo[4,3,2-de][2,6]naphthyridin-4(1H,3H,5H)-yl)-3-methylbutanoyl)pyrrolidine-2-carbonitrile

HRID 1627192Notes

Reaction equation

[Cl:1][C:2]1[C:11]2[CH2:10][N:9]([C@H:12]([CH:16]([CH3:18])[CH3:17])[C:13](O)=[O:14])[C:8](=[O:19])[C:7]3=[CH:20][NH:21][C:5]([C:6]=23)=[N:4][CH:3]=1.CN(C(ON1N=[N:37][C:32]2[CH:33]=[CH:34][CH:35]=[N:36][C:31]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.Cl.N1CCC[C@H]1C#N.CN1CCOCC1>C1COCC1>[Cl:1][C:2]1[C:11]2[CH2:10][N:9]([C@H:12]([CH:16]([CH3:18])[CH3:17])[C:13]([N:36]3[CH2:35][CH2:34][CH2:33][C@H:31]3[C:32]#[N:37])=[O:14])[C:8](=[O:19])[C:7]3=[CH:20][NH:21][C:5]([C:6]=23)=[N:4][CH:3]=1

Participants

Conditions

Temperature: 40 °C

Procedure

(R)-2-(6-Chloro-3-oxopyrrolo[4,3,2-de][2,6]naphthyridin-4(1H,3H,5H)-yl)-3-methylbutanoic acid (10 mg, 0.032 mmol), HATU (15 mg, 0.039 mmol), (S)-pyrrolidine-2-carbonitrile hydrochloride (4 mg, 0.032 mmol), and N-methylmorpholine (90 μL, 0.097 mmol) were combined in THF (0.5 mL). The reaction mixture was stirred under nitrogen at 40° C. for 10 min and then at room temperature for 30 min. The solution was concentrated and purified by preparative HPLC (10-50% AcCN/H2O with 0.035% TFA) to afford the title compound as a yellow film (4 mg, 29%). 1H NMR (500 MHz, CD3OD) δ 0.94 (d, J=6.9 Hz, 3H), 1.06 (d, J=6.3 Hz, 3H), 1.04-1.13 (m, 1H), 2.12-2.17 (m, 2H), 2.25-2.29 (m, 2H), 2.60-2.63 (m, 1H), 3.72-3.75 (m, 1H), 3.83-3.87 (m, 1H), 4.90 (d, J=13.7 Hz, 1H), 5.05 (d, J=12.7 Hz, 1H), 5.50 (d, J=7.3 Hz, 1H), 7.86 (s, 1H), 8.25 (s, 1H). [M+H] calc'd for C19H20ClN5O2, 386; found, 386.

Workup

waitat room temperature for 30 min
concentrationThe solution was concentrated
custompurified by preparative HPLC (10-50% AcCN/H2O with 0.035% TFA)

Sources & evidence

ORD record: ord-948de1b529a44875b99296494b18831d
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08785429B2

Reaction notes

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