Diisopropylethylamine → HCID 178510000, compound

HRID 2204658Notes

Reaction equation

[NH:1]1[CH2:6][CH2:5][CH2:4][CH:3]([C:7]2[C:11]3=[C:12]4[CH:18]=[CH:17][NH:16][C:13]4=[N:14][CH:15]=[C:10]3[NH:9][N:8]=2)[CH2:2]1.Cl[C:20]1[N:25]=[N:24][C:23]([C:26]#[N:27])=[CH:22][CH:21]=1.CCN(C(C)C)C(C)C>CCO>[C:7]1([CH:3]2[CH2:4][CH2:5][CH2:6][N:1]([C:20]3[N:25]=[N:24][C:23]([C:26]#[N:27])=[CH:22][CH:21]=3)[CH2:2]2)[C:11]2=[C:12]3[CH:18]=[CH:17][NH:16][C:13]3=[N:14][CH:15]=[C:10]2[NH:9][N:8]=1

Participants

Conditions

Temperature: 120 °C

Procedure

A mixture of 1-(piperidin-3-yl)-3,6-dihydropyrazolo[4,3-d]pyrrolo[2,3-b]pyridine (0.16 g, 0.65 mmol, Example #26, Step E) and 6-chloropyridazine-3-carbonitrile (0.090 g, 0.65 mmol) with DIEA (0.37 mL, 2.12 mmol) in EtOH (3 mL) was heated at about 120° C. for about 15 min in a microwave reactor (250 psi maximum pressure, 1 min ramp, 300 max watts). The crude material was purified by RP-HPLC (Table 2, Method h) to give 6-(3-(3,6-dihydropyrazolo[4,3-d]pyrrolo[2,3-b]pyridin-1-yl)piperidin-1-yl)pyridazine-3-carbonitrile (0.016 g, 24%): LC/MS (Table 2, Method a) Rt=1.76 min; m/z: 345 (M+H)+.

Workup

customThe crude material was purified by RP-HPLC (Table 2, Method h)

Sources & evidence

ORD record: ord-95879f6ab6904802971e7f63d755f33d
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09365579B2

Reaction notes

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