3-Chlorobenzo[f][1,7]naphthyridin-5-amine → N3-butylbenzo[f][1,7]naphthyridine-3,5-diamine

HRID 340211Notes

Reaction equation

Cl[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[C:5]([NH2:16])[N:6]=[C:7]3[CH:15]=[CH:14][CH:13]=[CH:12][C:8]3=2)[N:3]=1>C(N)CCC>[CH2:2]([NH:3][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[C:5]([NH2:16])[N:6]=[C:7]3[CH:15]=[CH:14][CH:13]=[CH:12][C:8]3=2)[N:3]=1)[CH2:11][CH2:10][CH3:9]

Participants

Conditions

Temperature: 110 °C

Procedure

A solution of 3-chlorobenzo[f][1,7]naphthyridin-5-amine (Example 20) (1.0 eq.) was dissolved in n-butylamine (0.1 M) and heated at 110° C. overnight. The reaction mixture was concentrated en vacuo, and the residue was purified by a COMBIFLASH® system (ISCO) using 0-90% ethyl acetate in hexane to give N3-butylbenzo[f][1,7]naphthyridine-3,5-diamine. 1H NMR (methanol d-4): δ 8.42 (d, 1H), 8.13 (d, 1H), 7.53 (d, 1H), 7.38-7.42 (dd, 1H), 7.25-7.29 (dd, 1H), 6.96 (d, 1H), 3.48 (t, 2H), 1.63-1.71 (m, 2H), 1.43-1.52 (m, 2H), 0.99 (t, 3H). LRMS [M+H]=267.2

Workup

concentrationThe reaction mixture was concentrated en vacuo
customthe residue was purified by a COMBIFLASH® system (ISCO)

Sources & evidence

ORD record: ord-c319edb6d8f94059b2fd55c40c4e80cc
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08895577B2

Reaction notes

Loading…