Lithium hydroxide, monohydrate → N-[2-[[6-[[5-[5-fluoro-2-(hydroxymethyl)-3-(4-oxo-6,7,8,9-tetrahydrobenzothiopheno[2,3-d]pyridazin-3-yl)phenyl]-1-methyl-2-oxo-3-pyridyl]amino]-2-pyridyl]oxy]ethyl]but-2-ynamide

HRID 1774641Notes

Reaction equation

HRID 1774641 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([N:37]2[C:42](=[O:43])[C:41]3[S:44][C:45]4[CH2:50][CH2:49][CH2:48][CH2:47][C:46]=4[C:40]=3[CH:39]=[N:38]2)[C:5]([CH2:32][O:33]C(=O)C)=[C:6]([C:8]2[CH:9]=[C:10]([NH:16][C:17]3[N:22]=[C:21]([O:23][CH2:24][CH2:25][NH:26][C:27](=[O:31])[C:28]#[C:29][CH3:30])[CH:20]=[CH:19][CH:18]=3)[C:11](=[O:15])[N:12]([CH3:14])[CH:13]=2)[CH:7]=1.O[Li].O>C1COCC1.CC(O)C.O>[F:1][C:2]1[CH:3]=[C:4]([N:37]2[C:42](=[O:43])[C:41]3[S:44][C:45]4[CH2:50][CH2:49][CH2:48][CH2:47][C:46]=4[C:40]=3[CH:39]=[N:38]2)[C:5]([CH2:32][OH:33])=[C:6]([C:8]2[CH:9]=[C:10]([NH:16][C:17]3[N:22]=[C:21]([O:23][CH2:24][CH2:25][NH:26][C:27](=[O:31])[C:28]#[C:29][CH3:30])[CH:20]=[CH:19][CH:18]=3)[C:11](=[O:15])[N:12]([CH3:14])[CH:13]=2)[CH:7]=1

Participants

4

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 118117141N-[2-[[6-[[5-[5-fluoro-2-(acetoxymethyl)-3-(4-oxo-6,7,8,9-tetrahydrobenzothiopheno[2,3-d]pyridazin-3-yl)phenyl]-1-methyl-2-oxo-3-pyridyl]amino]-2-pyridyl]oxy]ethyl]but-2-ynamide

Product 1

HCID 118116477N-[2-[[6-[[5-[5-fluoro-2-(hydroxymethyl)-3-(4-oxo-6,7,8,9-tetrahydrobenzothiopheno[2,3-d]pyridazin-3-yl)phenyl]-1-methyl-2-oxo-3-pyridyl]amino]-2-pyridyl]oxy]ethyl]but-2-ynamideYield 9.7%

Reagents, catalysts & solvents 1

HCID 22722550Tetrahydrofuran water isopropanolSolvent

Procedure

A mixture of 106a (330 mg, 0.47 mmol) and LiOH.H2O (196 mg, 4.67 mmol) in THF/i-PrOH/water (5.0 mL/3.0 mL/2.0 mL) was stirred at rt for 1 h. The mixture was extracted with EA. The combined organic layers were dried over Na2SO4, filtered and concentrated. The residue was purified by prep-HPLC to give 106 (30 mg, 8% for two steps) as white solid. 1H NMR (500 MHz, CDCl3): δ 8.52 (s, 1H), 8.26 (s, 1H), 7.52 (t, J=8.0 Hz, 1H), 7.45 (s, 1H), 7.13-7.10 (m, 1H), 6.69 (s, 1H), 6.52 (d, J=8.0 Hz, 1H), 6.22 (d, J=8.5 Hz, 1H), 4.34 (s, 2H), 4.27 (t, J=5.0 Hz, 2H), 2.98-2.97 (m, 2H), 2.87-2.85 (m, 2H), 1.99-1.96 (m, 4H), 1.86 (s, 3H). ESI-LCMS: m/z=655 [C34H31FN6O5S+H]+

Workup

  1. extractionThe mixture was extracted with EA
  2. dry with materialThe combined organic layers were dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by prep-HPLC

Sources & evidence

ORD record
ord-e32ffa6a587f4ed383ca2c1738b8fcf9
Source dataset
uspto-grants-2016_02
Patent number
US09260415B2

Reaction notes

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