Allyl trans-2-(3-bromo-2-oxopropyl)-3-methoxy-1-piperidinecarboxylate → Allyl trans-2-[3-(7-chloro-6-(4-chlorophenoxy)-quinazolin-4(3H)-on-3-yl)-2-oxopropyl]-3-methoxypiperidine-1-carboxylate

HRID 34615Notes

Reaction equation

HRID 34615 reaction equation
[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6](=[O:12])[NH:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[O:13][C:14]1[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=1.Br[CH2:22][C:23](=[O:39])[CH2:24][C@H:25]1[C@H:30]([O:31][CH3:32])[CH2:29][CH2:28][CH2:27][N:26]1[C:33]([O:35][CH2:36][CH:37]=[CH2:38])=[O:34]>C[O-].[Na+].CO>[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6](=[O:12])[N:7]([CH2:22][C:23](=[O:39])[CH2:24][C@H:25]3[C@H:30]([O:31][CH3:32])[CH2:29][CH2:28][CH2:27][N:26]3[C:33]([O:35][CH2:36][CH:37]=[CH2:38])=[O:34])[CH:8]=[N:9]2)=[CH:4][C:3]=1[O:13][C:14]1[CH:15]=[CH:16][C:17]([Cl:20])=[CH:18][CH:19]=1

Participants

5

Reactant 2

HCID 86741991Allyl trans-2-(3-bromo-2-oxopropyl)-3-methoxy-1-piperidinecarboxylateHCID 1357451607-chloro-6-(4-chlorophenoxy)quinazolin-4(3H)-one

Product 1

HCID 86742318Allyl trans-2-[3-(7-chloro-6-(4-chlorophenoxy)-quinazolin-4(3H)-on-3-yl)-2-oxopropyl]-3-methoxypiperidine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 10942334Sodium MethoxideSolvent

Procedure

Under a nitrogen atmosphere in a flame-dried flask at room temperature and with magnetic stirring, 0.921 g (0.003 mol) of 7-chloro-6-(4-chlorophenoxy)quinazolin-4(3H)-one was slurried in 3.0 ml of 1.1N sodium methoxide. After 15 minutes, 1.00 g (0.003 mol) of allyl trans-2-(3-bromo-2-oxopropyl)-3-methoxy-1-piperidinecarboxylate in 10 ml of methanol was added dropwise. After 2 hours, the reaction mixture was evaporated under reduced pressure, and the residue treated with water. The aqueous solution was extracted three times with 75 ml of dichloromethane. The combined extracts were dried over anhydrous magnesium sulfate, filtered, and evaporated to afford the title compound: yield 1.28 g (76%); m.p. 138°-141° C. H-NMR(CDCl3) 1.3 to 1.9 (m, 4H), 2.6-3.4 (m, 6H), 3.3 (s, 3H), 4.9 (s, 2H), 4.5-6.2 (m, 5H), 7.1 (q, 4H), 7.6 (s, 1H), 7.8 (d, 2H) ppm.

Workup

  1. waitAfter 2 hours
  2. customthe reaction mixture was evaporated under reduced pressure
  3. additionthe residue treated with water
  4. extractionThe aqueous solution was extracted three times with 75 ml of dichloromethane
  5. dry with materialThe combined extracts were dried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. customevaporated

Sources & evidence

ORD record
ord-f42732280a2a465088300de1d708de3d
Source dataset
uspto-grants-1988_08
Patent number
US04762838

Reaction notes

Loading…