Trifluoroacetic acid → (R)-1-(4-((6-(3-aminopiperidin-1-yl)pyridin-3-yl)amino)-6-(3-chloro-5-fluoro-4-hydroxyphenyl)-1,5-naphthyridin-3-yl)-2-methylpropan-1-one trihydrochloride

HRID 2178955Notes

Reaction equation

C(OC(=O)[NH:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]2[CH:19]=[CH:18][C:17]([NH:20][C:21]3[C:30]4[C:25](=[CH:26][CH:27]=[C:28]([C:31]5[CH:36]=[C:35]([F:37])[C:34]([OH:38])=[C:33]([Cl:39])[CH:32]=5)[N:29]=4)[N:24]=[CH:23][C:22]=3[C:40](=[O:44])[CH:41]([CH3:43])[CH3:42])=[CH:16][N:15]=2)[CH2:9]1)(C)(C)C.C(O)(C(F)(F)F)=O>>[ClH:39].[ClH:39].[ClH:39].[NH2:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]2[N:15]=[CH:16][C:17]([NH:20][C:21]3[C:30]4[C:25](=[CH:26][CH:27]=[C:28]([C:31]5[CH:36]=[C:35]([F:37])[C:34]([OH:38])=[C:33]([Cl:39])[CH:32]=5)[N:29]=4)[N:24]=[CH:23][C:22]=3[C:40](=[O:44])[CH:41]([CH3:42])[CH3:43])=[CH:18][CH:19]=2)[CH2:9]1

Participants

Reactant 2

HCID 6422Trifluoroacetic acid

HCID 136981884(R)-tert-butyl (1-(5-((6-(3-chloro-5-fluoro-4-hydroxyphenyl)-3-isobutyryl-1,5-naphthyridin-4-yl)amino)pyridin-2-yl)piperidin-3-yl)carbamate

Product 1

HCID 137231127(R)-1-(4-((6-(3-aminopiperidin-1-yl)pyridin-3-yl)amino)-6-(3-chloro-5-fluoro-4-hydroxyphenyl)-1,5-naphthyridin-3-yl)-2-methylpropan-1-one trihydrochlorideYield 262.6%

Procedure

Following general procedure IV-2, (R)-tert-butyl(1-(5-((6-(3-chloro-5-fluoro-4-hydroxyphenyl)-3-isobutyryl-1,5-naphthyridin-4-yl)amino)pyridin-2-yl)piperidin-3-yl)carbamate (168 mg, 0.26 mmol) was reacted with TFA (2 mL) followed by formation of the trihydrochloride salt to afford the desired product (110 mg, 78%) as an orange solid: 1H NMR (500 MHz, CD3OD) δ 9.31 (s, 1H), 8.35 (s, 2H), 8.18 (d, J=2.5 Hz, 1H), 7.64 (d, J=9.0, 2.5 Hz, 1H), 7.38 (bs, 1H), 7.22-7.12 (m, 1H), 7.02 (d, J=9.0 Hz, 1H), 4.44-4.32 (m, 1H), 3.98-3.90 (m, 1H), 3.82-3.70 (m, 1H), 3.46-3.22 (m, 3H), 2.22-2.12 (m, 1H), 2.01-1.88 (m, 1H), 1.80-1.68 (m, 2H), 1.36-1.20 (m, 6H); ESI MS m/z 535 [M+H]+; HPLC>99% (AUC), tR=10.07 min.

Sources & evidence

ORD record: ord-bcd3c698a2404726ab885a30df76a037
Source dataset: uspto-grants-2015_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09067937B2

Reaction notes

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