Pyridine → N-{3-[(4R)-1-hydroxy-4-methyl-4-(3-methylbutyl)-3-oxo-3,4-dihydronaphthalen-2-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}acetamide

HRID 494582Notes

Reaction equation

HRID 494582 reaction equation
Cl.[NH2:2][C:3]1[CH:32]=[CH:31][C:6]2[NH:7][C:8]([C:13]3[C:14](=[O:30])[C@:15]([CH3:29])([CH2:24][CH2:25][CH:26]([CH3:28])[CH3:27])[C:16]4[C:21]([C:22]=3[OH:23])=[CH:20][CH:19]=[CH:18][CH:17]=4)=[N:9][S:10](=[O:12])(=[O:11])[C:5]=2[CH:4]=1.[C:33](OC(=O)C)(=[O:35])[CH3:34].N1C=CC=CC=1>C(Cl)Cl>[OH:23][C:22]1[C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[C@@:15]([CH3:29])([CH2:24][CH2:25][CH:26]([CH3:28])[CH3:27])[C:14](=[O:30])[C:13]=1[C:8]1[NH:7][C:6]2[CH:31]=[CH:32][C:3]([NH:2][C:33](=[O:35])[CH3:34])=[CH:4][C:5]=2[S:10](=[O:12])(=[O:11])[N:9]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 135869462(1R)-3-(7-amino-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-1-methyl-1-(3-methylbutyl)naphthalen-2(1 H)-one hydrochloride

Product 1

HCID 135409606N-{3-[(4R)-1-hydroxy-4-methyl-4-(3-methylbutyl)-3-oxo-3,4-dihydronaphthalen-2-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}acetamideYield 91%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of Example 39H (0.050 g, 0.105 mmol), acetic anhydride (0.011 mL, 0.116 mmol), and pyridine (0.068 mL, 0.840 mmol) in methylene chloride (2 mL) was stirred at 25° C. for 4 hours. The solution was concentrated in vacuo and the residue was chromatographed on silica gel eluting with methylene chloride and 2.5% methanol in methylene chloride to give the desired product (0.046 g, 90%). 1H NMR (300 MHz, DMSO-d6): 5 ppm 0.43 (m, 1H) 0.77 (m, 7H) 1.33 (m, 1H) 1.56 (m, 3H) 2.06 (m, 4H) 2.23 (m, 1H) 7.53 (m, 1H) 7.66 (m, 1H) 7.77 (m, 3H) 8.16 (m, 1H) 8.29 (m, 1H) 10.38 (m, 1H) 13.84 (m, 1H).

Workup

  1. concentrationThe solution was concentrated in vacuo
  2. customthe residue was chromatographed on silica gel eluting with methylene chloride and 2.5% methanol in methylene chloride

Sources & evidence

ORD record
ord-ade4d2443c2940d2968f0f8515094bbc
Source dataset
uspto-grants-2009_05
Patent number
US07538105B2

Reaction notes

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