Triphenylphosphine → 2-(1-Ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-(7-methoxy-2-phenyl-quinazolin-4-yloxy)-cyclopentanecarboxylic acid tert-butyl ester

HRID 643847Notes

Reaction equation

[C:1]([O:5][C:6]([C@@H:8]1[CH2:12][C@@H:11]([OH:13])[CH2:10][C@H:9]1[C:14](=[O:26])[NH:15][C@:16]1([C:21]([O:23][CH2:24][CH3:25])=[O:22])[CH2:18][C@H:17]1[CH:19]=[CH2:20])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:27][O:28][C:29]1[CH:38]=[C:37]2[C:32]([C:33](O)=[N:34][C:35]([C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=3)=[N:36]2)=[CH:31][CH:30]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1COCC1>[C:1]([O:5][C:6]([CH:8]1[CH2:12][CH:11]([O:13][C:33]2[C:32]3[C:37](=[CH:38][C:29]([O:28][CH3:27])=[CH:30][CH:31]=3)[N:36]=[C:35]([C:39]3[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=3)[N:34]=2)[CH2:10][CH:9]1[C:14](=[O:26])[NH:15][C:16]1([C:21]([O:23][CH2:24][CH3:25])=[O:22])[CH2:18][CH:17]1[CH:19]=[CH2:20])=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

Conditions

Temperature: 0 °C

Procedure

Compound 35 (700 mg, 1.9 mmol), 7-methoxy-2-phenyl-quinazolin-4-ol (670 mg, 2.66 mmol) and triphenyl phosphine (1245 mg, 4.75 mmol) were dissolved in THF (50 ml) and cooled to 0° C. Diisopropyl azidocarboxylate (960 mg, 4.75 mmol) was added slowly and the slurry was allowed to reach room temperature. After 12 h, the solvent was removed under reduced pressure and the residue taken up in ether and filtrated. Purification by column chromatography (SiO2; 1% methanol in dichloromethane) gave the pure title compound (778 mg, 68%). MS (M+H+) 603.

Workup

customto reach room temperature
customthe solvent was removed under reduced pressure
filtrationfiltrated
customPurification by column chromatography (SiO2; 1% methanol in dichloromethane)

Sources & evidence

ORD record: ord-881ef959b0cc4a52a4513906db41bd54
Source dataset: uspto-grants-2010_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07700552B2

Reaction notes

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