Isonicotinic Acid → N-(1-(((4-amino-2,2-dioxido-1H-benzo[c][1,2,6]thiadiazin-5-yl)oxy)methyl)cyclopentyl)isonicotinamide

HRID 1467366Notes

Reaction equation

HRID 1467366 reaction equation
Cl.[NH2:2][C:3]1[C:4]2[C:14]([O:15][CH2:16][C:17]3([NH2:22])[CH2:21][CH2:20][CH2:19][CH2:18]3)=[CH:13][CH:12]=[CH:11][C:5]=2[NH:6][S:7](=[O:10])(=[O:9])[N:8]=1.C(N(CC)CC)C.[C:30](O)(=[O:37])[C:31]1[CH:36]=[CH:35][N:34]=[CH:33][CH:32]=1.CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1>CN(C=O)C>[NH2:2][C:3]1[C:4]2[C:14]([O:15][CH2:16][C:17]3([NH:22][C:30](=[O:37])[C:31]4[CH:36]=[CH:35][N:34]=[CH:33][CH:32]=4)[CH2:21][CH2:20][CH2:19][CH2:18]3)=[CH:13][CH:12]=[CH:11][C:5]=2[NH:6][S:7](=[O:10])(=[O:9])[N:8]=1

Participants

7

Reactant 5

HCID 5922Isonicotinic AcidHCID 8471TriethylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 867301294-amino-5-((1-aminocyclopentyl)methoxy)-1H-benzo[c][1,2,6]thiadiazine 2,2-dioxide hydrochloride

Product 1

HCID 85468758N-(1-(((4-amino-2,2-dioxido-1H-benzo[c][1,2,6]thiadiazin-5-yl)oxy)methyl)cyclopentyl)isonicotinamideYield 72.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a stirred suspension of 4-amino-5-((1-aminocyclopentyl)methoxy)-1H-benzo[c][1,2,6]thiadiazine 2,2-dioxide hydrochloride (346.83 mg, 1 mmol) in DMF (6 mL) was added triethylamine (0.278 mL, 2 mmol). After being stirred at room temperature for 10 min., a mixture of isonicotinic acid (123.11 mg, 1.1 mmol), EDCI (211 mg, 1.1 mmol) and HOBt (149 mg, 1.1 mmol) in 4 ml of DMF was added and the reaction mixture was then stirred at room temperature overnight. The resulting solution was purified by reverse phase HPLC, and then the product was re-crystallized from ethanol/water, after dry to give the title compound as a white solid (300 mg) in 72% yield. M.p.: >250° C. 1H NMR (400 MHz, DMSO-d6) δ 1.65-1.67 (m, 2H), 1.75-1.78 (m, 2H), 1.83-1.88 (m, 2H), 2.19-2.24 (m, 2H), 4.43 (s, 2H), 6.59 (d, J=8.0 Hz, 1H), 6.79 (d, J=8.0 Hz, 1H), 7.43 (t, J=8.0 Hz, 1H), 7.66 (d, J=8.0 Hz, 2H), 7.85 (s, 1H), 8.43 (s, 1H), 8.56 (s, 1H), 8.66 (d, J=8 Hz, 2H), 10.96 (s, 1H). MS 416 (MH+).

Workup

  1. additionwas added
  2. stirringthe reaction mixture was then stirred at room temperature overnight
  3. customThe resulting solution was purified by reverse phase HPLC
  4. customthe product was re-crystallized from ethanol/water
  5. customafter dry

Sources & evidence

ORD record
ord-4894a82293e4464cb1e11d4e831c252a
Source dataset
uspto-grants-2015_04
Patent number
US09000151B2

Reaction notes

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