Acetic Acid → HCID 86700321, compound

HRID 879502Notes

Reaction equation

HRID 879502 reaction equation
[C:1]([O:5][C@@H:6]([C:12]1[C:37]([CH3:38])=[CH:36][C:15]2[N:16]=[C:17]([N:19]3[CH2:24][CH2:23][N:22]=[C:21]([C:25]4[CH:26]=[C:27]5[C:31](=[CH:32][CH:33]=4)[N:30]([CH3:34])[N:29]=[CH:28]5)[C:20]3=[O:35])[S:18][C:14]=2[C:13]=1[C:39]1[CH:44]=[CH:43][C:42]([Cl:45])=[CH:41][CH:40]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([CH3:4])([CH3:3])[CH3:2].C(O)(=O)C.C([BH3-])#N.[Na+].[OH-].[Na+]>C1COCC1.C(OCC)(=O)C>[C:1]([O:5][C@@H:6]([C:12]1[C:37]([CH3:38])=[CH:36][C:15]2[N:16]=[C:17]([N:19]3[CH2:24][CH2:23][NH:22][CH:21]([C:25]4[CH:26]=[C:27]5[C:31](=[CH:32][CH:33]=4)[N:30]([CH3:34])[N:29]=[CH:28]5)[C:20]3=[O:35])[S:18][C:14]=2[C:13]=1[C:39]1[CH:44]=[CH:43][C:42]([Cl:45])=[CH:41][CH:40]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([CH3:2])([CH3:3])[CH3:4]

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 14798Sodium HydroxideHCID 5003444Sodium cyanoborohydrideHCID 86700320HCID 86700320, compound

Product 1

HCID 86700321HCID 86700321, compound

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To the solution of (S)-ethyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)-2-oxo-5,6-dihydropyrazin-1(2H)-yl)benzo[d]thiazol-6-yl)acetate (64 mg, 0.1 mmol) in THF (1 mL) was added acetic acid (6 μL, 0.1 mmol), followed by sodium cyanoborohydride (10 mg, 0.2 mmol). The mixture was stirred for 12 hours, and diluted with ethyl acetate. Sodium hydroxide solution (1 N, 5 mL) was added, and the mixture was stirred for 30 minutes. Organic phase was separated, and was washed water and brine, and was dried over sodium sulfate. Concentration and purification with flash column chromatography (hexanes/EtOAc) gave (2S)-ethyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)-2-oxopiperazin-1-yl)benzo[d]thiazol-6-yl)acetate. LCMS-ESI+: calc'd for C34H37ClN5O4S: 646.2 (M+H+); Found: 646.2 (M+H+).

Workup

  1. stirringthe mixture was stirred for 30 minutes
  2. customOrganic phase was separated
  3. washwas washed water and brine
  4. dry with materialwas dried over sodium sulfate
  5. concentrationConcentration and purification with flash column chromatography (hexanes/EtOAc)

Sources & evidence

ORD record
ord-a501305b3a124a3facbba02ce18d9cfa
Source dataset
uspto-grants-2015_03
Patent number
US08987250B2

Reaction notes

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