1,4-Dioxane → HCID 67064414, compound

HRID 1409244Notes

Reaction equation

HRID 1409244 reaction equation
Cl[C:2]1[N:7]2[N:8]=[C:9]([CH3:11])[CH:10]=[C:6]2[N:5]=[C:4]([NH:12][C:13](=[O:24])[C:14]2[CH:19]=[CH:18][C:17]([C:20]([OH:23])([CH3:22])[CH3:21])=[CH:16][CH:15]=2)[CH:3]=1.[Cl:25][C:26]1[CH:27]=[C:28](B(O)O)[CH:29]=[CH:30][C:31]=1[O:32][CH3:33].O1CCOCC1>CO.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[Cl:25][C:26]1[CH:27]=[C:28]([C:2]2[N:7]3[N:8]=[C:9]([CH3:11])[CH:10]=[C:6]3[N:5]=[C:4]([NH:12][C:13](=[O:24])[C:14]3[CH:19]=[CH:18][C:17]([C:20]([OH:23])([CH3:22])[CH3:21])=[CH:16][CH:15]=3)[CH:3]=2)[CH:29]=[CH:30][C:31]=1[O:32][CH3:33]

Participants

6

Reactant 3

HCID 312751,4-DioxaneHCID 32475223-Chloro-4-methoxybenzeneboronic acidHCID 86652267N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide

Product 1

HCID 67064414HCID 67064414, compoundYield 20.4%

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 887MethanolSolvent

Conditions

Temperature
120 °C

Procedure

A suspension of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide (2F, 90 mg, 0.261 mmol), 3-Chloro-4-methoxyphenylboronic acid (97 mg, 0.522 mmol), and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (17 mg, 21 μmol) in 2:1 1,4-dioxane/saturated aqueous NaHCO3 (0.5 mL of 1,4-dioxane and 1 mL of saturated aqueous NaHCO3) was prepared in a 2 mL microwave reaction vessel and the sealed reaction vessel warmed to 120° C. for 20 minutes. The reaction mixture was cooled to rt, diluted with methanol, filtered, and purified via preparative HPLC (60-70% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a yellow solid (24 mg, 20%). 1H NMR (DMSO-d6) δ: 11.19 (s, 1H), 8.25 (d, J=2.3 Hz, 1H), 7.90-8.17 (m, 4H), 7.54-7.73 (m, 2H), 7.41 (d, J=8.8 Hz, 1H), 6.39 (s, 1H), 5.19 (s, 1H), 3.99 (s, 3H), 2.42 (s, 3H), 1.46 (s, 6H). ESI-MS: m/z 451.0 (M+H)+.

Workup

  1. customwas prepared in a 2 mL microwave reaction vessel
  2. customthe sealed reaction vessel
  3. temperatureThe reaction mixture was cooled to rt
  4. filtrationfiltered
  5. custompurified via preparative HPLC (60-70% MeCN/H2O gradient+0.01% TFA)

Sources & evidence

ORD record
ord-a7b30379504848e3ade66cffcd22da90
Source dataset
uspto-grants-2014_12
Patent number
US08921358B2

Reaction notes

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