3,5-Dimethylisoxazole-4-carbonyl Chloride → (S)-2-{[(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-7-(3,5-dimethyl-isoxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid

HRID 391975

Reaction equation

HRID 391975 reaction equation
Cl.Cl.C[O:4][C:5](=[O:55])[C@@H:6]([NH:22][C:23]([C@@H:25]1[CH2:34][C:33]2[CH:32]=[C:31]3[O:35][CH2:36][C@H:37]([C:39]4[CH:44]=[CH:43][C:42]([O:45][CH2:46][C:47]5[CH:52]=[CH:51][C:50]([Cl:53])=[C:49]([Cl:54])[CH:48]=5)=[CH:41][CH:40]=4)[O:38][C:30]3=[CH:29][C:28]=2[CH2:27][NH:26]1)=[O:24])[CH2:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[CH:19]=[CH:18][N:17]=[C:16]([CH3:20])[C:15]=2[CH3:21])=[CH:10][CH:9]=1.[CH3:56][C:57]1[C:61]([C:62](Cl)=[O:63])=[C:60]([CH3:65])[O:59][N:58]=1>CCOC(C)=O.C([O-])(O)=O.[Na+]>[Cl:54][C:49]1[CH:48]=[C:47]([CH:52]=[CH:51][C:50]=1[Cl:53])[CH2:46][O:45][C:42]1[CH:41]=[CH:40][C:39]([C@H:37]2[CH2:36][O:35][C:31]3=[CH:32][C:33]4[CH2:34][C@@H:25]([C:23]([NH:22][C@@H:6]([CH2:7][C:8]5[CH:13]=[CH:12][C:11]([C:14]6[CH:19]=[CH:18][N:17]=[C:16]([CH3:20])[C:15]=6[CH3:21])=[CH:10][CH:9]=5)[C:5]([OH:4])=[O:55])=[O:24])[N:26]([C:62]([C:61]5[C:57]([CH3:56])=[N:58][O:59][C:60]=5[CH3:65])=[O:63])[CH2:27][C:28]=4[CH:29]=[C:30]3[O:38]2)=[CH:44][CH:43]=1

Participants

5

Reactant 2

HCID 27362653,5-Dimethylisoxazole-4-carbonyl ChlorideHCID 66719317(S)-2-({(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl}-amino)-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester dihydrochloride

Product 1

HCID 58327116(S)-2-{[(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-7-(3,5-dimethyl-isoxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 516892Sodium BicarbonateSolvent

Procedure

(S)-2-({(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexa hydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl}-amino)-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester bis hydrochloride (25 mg) was dissolved in 1:1 EtOAc and saturated aqueous NaHCO3 and 3,5-dimethyl-isoxazole-4-carbonyl chloride (3 eq.) were added. After stirring at room temperature for 1 hour, the layers were separated and the organic layer was dried over Na2SO4 and evaporated. The residue was purified by over silica (hexanes to 8:2 hexanes-EtOAc to 6:4 hexanes-EtOAc to 6:4 hexanes-EtOAc+2% MeOH to DCM+3% MeOH). The resulting compound was hydrolyzed according to General Procedure B to give the title compound (16 mg). LCMS (m/z): 862.

Workup

  1. additionwere added
  2. customthe layers were separated
  3. dry with materialthe organic layer was dried over Na2SO4
  4. customevaporated
  5. customThe residue was purified by over silica (hexanes to 8:2 hexanes-EtOAc to 6:4 hexanes-EtOAc to 6:4 hexanes-EtOAc+2% MeOH to DCM+3% MeOH)

Sources & evidence

ORD record
ord-8b0277e0ff6f42d29c8884f3cf930ceb
Source dataset
uspto-grants-2013_02
Patent number
US08383644B2

Linked notes

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