(6-(3-Methylisoxazol-5-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methanamine → 7-methoxy-N-((6-(3-methylisoxazol-5-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methyl)-1,5-naphthyridin-4-amine

HRID 40207

Reaction equation

[CH3:1][C:2]1[CH:6]=[C:5]([C:7]2[CH:8]=[CH:9][C:10]3[N:11]([C:13]([CH2:16][NH2:17])=[N:14][N:15]=3)[N:12]=2)[O:4][N:3]=1.Cl[C:19]1[CH:20]=[CH:21][N:22]=[C:23]2[C:28]=1[N:27]=[CH:26][C:25]([O:29][CH3:30])=[CH:24]2>CC(O)CC>[CH3:30][O:29][C:25]1[CH:24]=[C:23]2[C:28]([C:19]([NH:17][CH2:16][C:13]3[N:11]4[N:12]=[C:7]([C:5]5[O:4][N:3]=[C:2]([CH3:1])[CH:6]=5)[CH:8]=[CH:9][C:10]4=[N:15][N:14]=3)=[CH:20][CH:21]=[N:22]2)=[N:27][CH:26]=1

Participants

Conditions

Temperature: 120 °C

Procedure

To a microwave vial (10-20 mL) was added (6-(3-methylisoxazol-5-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methanamine (1.00 g, 4.34 mmol) and 8-chloro-3-methoxy-1,5-naphthyridine (1.10 g, 5.65 mmol) in 2-butanol (12 mL). The suspension was stirred at 120° C. under microwave irradiation for four hours. The mixture was concentrated and taken up in ammonia in methanol (2.0 M) then purified by MPLC chromatography (eluted with 0-10% methanol in dichloromethane) to yield the product as a tan solid. MS m/z=389.0 [M+1]+. Calc'd for C19H16N8O2: 388.1

Workup

concentrationThe mixture was concentrated
customthen purified by MPLC chromatography (eluted with 0-10% methanol in dichloromethane)

Sources & evidence

ORD record: ord-d31892ae24954923a7f9c3f3201655b5
Source dataset: uspto-grants-2013_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08524900B2

Linked notes

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