Stannane, tributyl(1-ethoxyethenyl)- → Tert-butyl 3-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-(1-ethoxyvinyl)-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-3,8-diazabicyclo[3.2.1]octane-8-carboxylate

HRID 589195Notes

Reaction equation

HRID 589195 reaction equation
[CH3:1][Si:2]([CH3:54])([CH3:53])[CH2:3][CH2:4][O:5][CH2:6][N:7]([CH2:45][O:46][CH2:47][CH2:48][Si:49]([CH3:52])([CH3:51])[CH3:50])[C:8]1[N:13]2[N:14]=[CH:15][C:16]([C:17]3[CH:18]=[N:19][C:20]([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=4)=[CH:21][CH:22]=3)=[C:12]2[N:11]=[C:10]([N:29]2[CH2:35][CH:34]3[N:36]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH:31]([CH2:32][CH2:33]3)[CH2:30]2)[C:9]=1Br.C([Sn](CCCC)(CCCC)[C:60]([O:62][CH2:63][CH3:64])=[CH2:61])CCC>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:1][Si:2]([CH3:54])([CH3:53])[CH2:3][CH2:4][O:5][CH2:6][N:7]([CH2:45][O:46][CH2:47][CH2:48][Si:49]([CH3:52])([CH3:51])[CH3:50])[C:8]1[N:13]2[N:14]=[CH:15][C:16]([C:17]3[CH:18]=[N:19][C:20]([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=4)=[CH:21][CH:22]=3)=[C:12]2[N:11]=[C:10]([N:29]2[CH2:35][CH:34]3[N:36]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH:31]([CH2:32][CH2:33]3)[CH2:30]2)[C:9]=1[C:60]([O:62][CH2:63][CH3:64])=[CH2:61]

Participants

5

Reactant 2

HCID 619414Stannane, tributyl(1-ethoxyethenyl)-HCID 67294397Tert-butyl 3-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-bromo-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-3,8-diazabicyclo[3.2.1]octane-8-carboxylate

Product 1

HCID 67295001Tert-butyl 3-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-(1-ethoxyvinyl)-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-3,8-diazabicyclo[3.2.1]octane-8-carboxylate

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A degassed mixture of tert-butyl 3-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-bromo-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-3,8-diazabicyclo[3.2.1]octane-8-carboxylate (256 mg, 0.31 mmol), Pd(PPh3)4 (35 mg, 0.031 mmol), tributyl(1-ethoxyvinyl)stannane (221 mg, 0.61 mmol) in dioxane (6 mL) was heated at 100° C. overnight. The reaction mixture was cooled to room temperature, filtered through a 9:1 SiO2:KF plug and concentrated in vacuo. Purification by column chromatography afforded tert-butyl 3-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-(1-ethoxyvinyl)-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-3,8-diazabicyclo[3.2.1]octane-8-carboxylate, LCMS tR=3.58 Min (10 min run, UV254nm). Mass calculated for M+H 828.45, observed LC/MS m/z 828.07 (M+H).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationfiltered through a 9:1 SiO2
  3. concentrationKF plug and concentrated in vacuo
  4. customPurification by column chromatography

Sources & evidence

ORD record
ord-60b8b55ae5cb43bb89eab344a924edff
Source dataset
uspto-grants-2016_01
Patent number
US09227971B2

Reaction notes

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