Sodium borohydride → (7-Chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]-oxazine-4,4'-piperidine]-1'-yl)(4-(2-hydroxyethyl)-3-methoxyphenyl)methanone

HRID 1908183Notes

Reaction equation

HRID 1908183 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:28]3[CH:29]=[CH:30][CH:31]=[C:27]3[C:8]3([CH2:13][CH2:12][N:11]([C:14]([C:16]4[CH:21]=[CH:20][C:19]([CH2:22][CH:23]=[O:24])=[C:18]([O:25][CH3:26])[CH:17]=4)=[O:15])[CH2:10][CH2:9]3)[O:7][C:6]=2[CH:32]=1.[BH4-].[Na+]>CO>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:28]3[CH:29]=[CH:30][CH:31]=[C:27]3[C:8]3([CH2:9][CH2:10][N:11]([C:14]([C:16]4[CH:21]=[CH:20][C:19]([CH2:22][CH2:23][OH:24])=[C:18]([O:25][CH3:26])[CH:17]=4)=[O:15])[CH2:12][CH2:13]3)[O:7][C:6]=2[CH:32]=1

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 585508322-(4-(7-Chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]oxazine-4,4'-piperidine]-1'-ylcarbon-yl)-2-methoxyphenyl)acetaldehyde

Product 1

HCID 58551847(7-Chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]-oxazine-4,4'-piperidine]-1'-yl)(4-(2-hydroxyethyl)-3-methoxyphenyl)methanoneYield 7%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To 2-(4-(7-chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]oxazine-4,4′-piperidine]-1′-ylcarbon-yl)-2-methoxyphenyl)acetaldehyde (from Step 1) was added MeOH (1 mL) followed by NaBH4 (95 mg, 2.5 mmol) and the reaction was stirred for 30 minutes at ambient temperature. After 30 minutes, the mixture was filtered and the filtrate was purified by prep-HPLC (1-99% MeOH:H2O) to give (7-chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]-oxazine-4,4′-piperidine]-1′-yl)(4-(2-hydroxyethyl)-3-methoxyphenyl)methanone (16 mg, 7%). ESI-MS m/z calc. 452.2. found 453.2 (M+1)+. Retention time: 2.91 minutes (4.5 min run). (7-Chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]oxazine-4,4′-piperidine]-1′-yl)(3-fluoro-4-(1-hydroxy-2-methylpropan-2-yl)phenyl)methanone [ESI-MS m/z calc. 468.2. found 469.4 (M+1)+. Retention time: 3.06 minutes (4.5 min run)] and (7-chlorospiro[benzo[b]pyrrolo[1,2-d][1,4]oxazine-4,4′-piperidine]-1′-yl)(4-(1-hydroxy-2-methylpropan-2-yl)phenyl)methanone [ESI-MS m/z calc. 450.2. found 451.2 (M+1)+. Retention time: 9.72 minutes (15 min run)] were prepared using the procedures described above.

Workup

  1. waitAfter 30 minutes
  2. filtrationthe mixture was filtered
  3. customthe filtrate was purified by prep-HPLC (1-99% MeOH:H2O)

Sources & evidence

ORD record
ord-21aa17c4fbd64d67a4d0098451f7d7b9
Source dataset
uspto-grants-2013_12
Patent number
US08598164B2

Reaction notes

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