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Diisopropylethylamine → 4-(4-Methyl-2-oxo-2,3-dihydrobenzo[d]oxazol-6-yloxy)-6-(2'-oxo-1'.2'-dihydrospiro-[piperidin-4,4'-pyrido[2,3-d][1,3]oxazin]-1-yl)nicotinonitrile

HRID 1846579
Notes
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Reaction equation

HRID 1846579 reaction equation
Cl.[NH:2]1[C:7]2[N:8]=[CH:9][CH:10]=[CH:11][C:6]=2[C:5]2([CH2:16][CH2:15][NH:14][CH2:13][CH2:12]2)[O:4][C:3]1=[O:17].Cl[C:19]1[CH:26]=[C:25]([O:27][C:28]2[CH:37]=[C:36]([CH3:38])[C:31]3[NH:32][C:33](=[O:35])[O:34][C:30]=3[CH:29]=2)[C:22]([C:23]#[N:24])=[CH:21][N:20]=1.CCN(C(C)C)C(C)C>CN1C(=O)CCC1>[CH3:38][C:36]1[C:31]2[NH:32][C:33](=[O:35])[O:34][C:30]=2[CH:29]=[C:28]([O:27][C:25]2[C:22]([C:23]#[N:24])=[CH:21][N:20]=[C:19]([N:14]3[CH2:13][CH2:12][C:5]4([O:4][C:3](=[O:17])[NH:2][C:7]5[N:8]=[CH:9][CH:10]=[CH:11][C:6]4=5)[CH2:16][CH2:15]3)[CH:26]=2)[CH:37]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 66687106Spiro[piperidine-4,4'-pyrido[2,3-d][1,3]oxazin]-2'(1'H)-one hydrochlorideHCID 86663929HCID 86663929, compound

Product 1

HCID 462439834-(4-Methyl-2-oxo-2,3-dihydrobenzo[d]oxazol-6-yloxy)-6-(2'-oxo-1'.2'-dihydrospiro-[piperidin-4,4'-pyrido[2,3-d][1,3]oxazin]-1-yl)nicotinonitrile

Reagents, catalysts & solvents 1

HCID 13387
N-methyl-2-pyrrolidone
Solvent

Procedure

40 mg (0.16 mmol) spiro[piperidin-4,4′-pyrido[2,3-d][1,3]oxazin]-2′(1′H)-one hydrochloride, 40 mg (0.12 mmol) 6-chloro-4-(4-methyl-2-oxo-2,3-dihydro-benzoxazol-6-yloxy)-nicotinonitrile and 0.08 mL (0.47 mmol) DIPEA in 0.80 mL NMP were stirred for 1 h at 140° C. The reaction mixture was purified by preparative HPLC-MS. The fractions containing product were partially evaporated down i.vac. and neutralised with aqueous NaHCO3 solution. The precipitate formed was suction filtered and dried.

Workup

  1. customThe reaction mixture was purified by preparative HPLC-MS
  2. additionThe fractions containing product
  3. customwere partially evaporated down i.vac
  4. customThe precipitate formed
  5. filtrationfiltered
  6. customdried

Sources & evidence

ORD record
ord-8786448a8211478baed14b3e51299e00
Source dataset
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08952014B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes