Piperidine → Methyl 2-[[5,6-dihydro-4-hydroxy-2-oxo-6-(2-phenylethyl)-6-phenyl-2H-pyran-3-yl]thio]benzoate

HRID 357870Notes

Reaction equation

HRID 357870 reaction equation
Br[C:2]1[C:3](=[O:23])[O:4][C:5]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)([CH2:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH2:6][C:7]=1[OH:8].[C:24]([O:33][CH3:34])(=[O:32])[C:25]1[C:26](=[CH:28][CH:29]=[CH:30][CH:31]=1)[SH:27].N1CCCCC1>ClCCl>[OH:8][C:7]1[CH2:6][C:5]([CH2:9][CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[O:4][C:3](=[O:23])[C:2]=1[S:27][C:26]1[CH:28]=[CH:29][CH:30]=[CH:31][C:25]=1[C:24]([O:33][CH3:34])=[O:32]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 21009Benzoic acid, 2-mercapto-, methyl esterHCID 547216393-bromo-5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-one

Product 1

HCID 54721613Methyl 2-[[5,6-dihydro-4-hydroxy-2-oxo-6-(2-phenylethyl)-6-phenyl-2H-pyran-3-yl]thio]benzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

The title compound was prepared as described in General Method 6 from 1.9 mmol of 3-bromo-5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-one (prepared in example BBB), 2.2 mmol of methyl thiosalicylate and 2.1 mmol of piperidine in 30 mL of dichloromethane. The crude product was chromatographed on silica gel, eluting first with chloroform and then with 5% methanol in chloroform, to give the title compound (m.p. 91°-92° C.). 1H NMR (DMSO-d6) δ 2.25 (m, 2 H), 2.38 (m, 1 H), 2.62 (m, 1 H), 3.44 (q, 2 H), 3.82 (s, 3 H), 6.06 (bd, 1 H), 6.90 (t, 1 H), 7.05-7.52 (m, 11 H), 7.81 (dd, 1 H).

Workup

  1. customThe title compound was prepared
  2. customThe crude product was chromatographed on silica gel
  3. washeluting first with chloroform

Sources & evidence

ORD record
ord-fe67a76b62424fd4913bd9f43ae48917
Source dataset
uspto-grants-1998_11
Patent number
US05840751

Reaction notes

Loading…