2-Aminobenzenesulfonamide → N-[2-(aminosulfonyl)phenyl]-1-hydroxy-3-oxo-4,4-dipropyl-3,4-dihydro-2-naphthalenecarboxamide

HRID 494440Notes

Reaction equation

[OH:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([CH2:15][CH2:16][CH3:17])([CH2:12][CH2:13][CH3:14])[C:4](=[O:18])[C:3]=1[C:19](OCC)=[O:20].[NH2:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=1[S:31]([NH2:34])(=[O:33])=[O:32]>C1(C)C=CC=CC=1>[NH2:34][S:31]([C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=1[NH:24][C:19]([C:3]1[C:4](=[O:18])[C:5]([CH2:15][CH2:16][CH3:17])([CH2:12][CH2:13][CH3:14])[C:6]2[C:11](=[CH:10][CH:9]=[CH:8][CH:7]=2)[C:2]=1[OH:1])=[O:20])(=[O:32])=[O:33]

Participants

Conditions

Temperature: 25 °C

Procedure

A suspension of the product of Example 1F (490 mg, 1.55 mmol) and 2-aminobenzenesulfonamide (Aldrich) (267 mg, 1.55 mmol) in toluene (25 mL) was stirred at reflux for 18 hours, cooled to 25° C. and concentrated in vacuo. The residue was recrystallized from ether-hexane solution to afford the title compound (410 mg, 60%). 1H NMR (300 MHz, CDCl3): δ 17.76 (d, J=12.13 Hz, 1 H), 12.67 (s, 1 H), 8.34 (m, 1 H), 8.09 (dd, J=8.09, 1.47 Hz, 1 H), 7.63 (m, 1 H), 7.38 (m, 3 H), 6.83 (m, 1 H), 5.57 (s, 2 H), 4.85 (s, 1 H), 2.32 (m, 2 H), 1.93 (m, 2 H), 0.97 (m, 2 H), 0.68 (m, 8 H).

Workup

temperatureat reflux for 18 hours
concentrationconcentrated in vacuo
customThe residue was recrystallized from ether-hexane solution

Sources & evidence

ORD record: ord-8f226e30b0e446e2b435cf9c3e92e5d5
Source dataset: uspto-grants-2009_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07538105B2

Reaction notes

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