Methyl Salicylate → HCID 11547073, compound

HRID 2422103Notes

Reaction equation

CC1C=CC(S([O:11][CH2:12][CH2:13][NH:14][C:15]2[C:16](=[O:32])[N:17]([C:28]([CH3:31])([CH3:30])[CH3:29])[S:18](=[O:27])(=[O:26])[C:19]=2[C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)(=O)=O)=CC=1.[C:33]([O:42][CH3:43])(=[O:41])[C:34]1[C:35](=[CH:37][CH:38]=[CH:39][CH:40]=1)O.C(=O)([O-])[O-].[K+].[K+]>CC#N>[C:28]([N:17]1[C:16](=[O:32])[C:15]([NH:14][CH2:13][CH2:12][O:11][C:40]2[CH:39]=[CH:38][CH:37]=[CH:35][C:34]=2[C:33]([O:42][CH3:43])=[O:41])=[C:19]([C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)[S:18]1(=[O:26])=[O:27])([CH3:31])([CH3:29])[CH3:30]

Participants

Conditions

Temperature: 120 °C

Procedure

2-[(2-tert-Butyl-1,1-dioxido-3-oxo-5-phenyl-2,3-dihydroisothiazol-4-yl)amino]ethyl 4-methylbenzenesulfonate (150 mg, 0.313 mmol) was dissolved in dry MeCN (3 mL) under nitrogen atmosphere. Methyl salicylate (52 mg, 0.345 mmol) was added followed by potassium carbonate (217 mg, 1.567 mmol). The reaction mixture was heated in a microwave reactor at 120° C. for 20 mins. Potassium carbonate was filtered off and the reaction mixture was evaporated to dryness in a vacuum centrifuge. The crude product was purified by preparative HPLC affording the title compound (9 mg, 6%). 1H NMR (CDCl3, 500 MHz): δ 1.74 (s, 9H), 3.27 (q, 2H), 3.97-4.00 (m, 5H), 6.17 (t, 1H), 6.86 (d, 1H), 7.05 (t, 1H), 7.44-7.48 (m, 4H), 7.52-7.56 (m, 2H), 7.85 (dd, 1H); 13C NMR (CDCl3, 125 MHz): δ 27.85, 43.53, 52.52, 61.69, 67.49, 107.84, 114.40, 121.12, 121.69, 125.42, 129.00, 129.85, 131.69, 132.27, 133.85, 135.56, 158.01, 159.56, 166.79; Mass Spectrum: M+H+ 459.0.

Workup

filtrationPotassium carbonate was filtered off
customthe reaction mixture was evaporated to dryness in a vacuum centrifuge
customThe crude product was purified by preparative HPLC

Sources & evidence

ORD record: ord-eebc29b837da4bf49c12f0231c538504
Source dataset: uspto-grants-2011_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07960380B2

Reaction notes

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