Pyridine → HCID 59135806, compound

HRID 504706Notes

Reaction equation

HRID 504706 reaction equation
[CH3:1][N:2]([C:11]1[CH:12]=[CH:13][CH:14]=[C:15]2[C:19]=1[NH:18][C:17]([C:20]1[S:21][C:22]3([CH2:29][CH2:28][NH:27][CH2:26][CH2:25]3)[CH2:23][N:24]=1)=[CH:16]2)[S:3]([C:6]1[S:7][CH:8]=[CH:9][CH:10]=1)(=[O:5])=[O:4].N1C=CC=CC=1.[O:36]1CC[CH2:38][CH2:37]1.C(OC(=O)C)(=O)C>O.C(#N)C>[C:37]([N:27]1[CH2:28][CH2:29][C:22]2([S:21][C:20]([C:17]3[NH:18][C:19]4[C:15]([CH:16]=3)=[CH:14][CH:13]=[CH:12][C:11]=4[N:2]([CH3:1])[S:3]([C:6]3[S:7][CH:8]=[CH:9][CH:10]=3)(=[O:4])=[O:5])=[N:24][CH2:23]2)[CH2:25][CH2:26]1)(=[O:36])[CH3:38]

Participants

7

Reactant 4

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 8028TetrahydrofuranHCID 59135835N-methyl-N-[2-(1-thia-3,8-diazaspiro[4.5]dec-2-en-2-yl)-1H-indol-7-yl]thiophene-2-sulfonamide

Product 1

HCID 59135806HCID 59135806, compoundYield 82%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6342AcetonitrileSolvent

Procedure

To a solution of N-methyl-N-[2-(1-thia-3,8-diazaspiro[4.5]dec-2-en-2-yl)-1H-indol-7-yl]thiophene-2-sulfonamide (100 mg), pyridine (0.022 ml), tetrahydrofuran (2 ml) and acetonitrile (1 ml) was slowly added acetic anhydride (0.022 ml) at 0° C., and the mixture was stirred for 1 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed successively with 1N hydrochloric acid, saturated aqueous sodium hydrogencarbonate and saturated brine, dried (Na2SO4), and concentrated. The obtained crystals were recrystallized from tetrahydrofuran-heptane to give the title compound (88 mg, yield 82%) as colorless crystals. melting point 216-218° C.

Workup

  1. customat 0° C.
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed successively with 1N hydrochloric acid, saturated aqueous sodium hydrogencarbonate and saturated brine
  4. dry with materialdried (Na2SO4)
  5. concentrationconcentrated
  6. customThe obtained crystals were recrystallized from tetrahydrofuran-heptane

Sources & evidence

ORD record
ord-475399e47fe247de9ba9dba8dea32f46
Source dataset
uspto-grants-2010_08
Patent number
US07777047B2

Reaction notes

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