Formaldehyde → HCID 67249788, compound

HRID 879809Notes

Reaction equation

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

Participants

Reactant 2

HCID 712Formaldehyde

HCID 66719705HCID 66719705, compound

Product 1

HCID 67249788HCID 67249788, compound

Procedure

(S)-3-{(S)-2-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3-dihydro-benzo[1,4]dioxin-6-yl}-2-((R)-1-phenyl-propylamino)-propionic acid methyl ester (0.165 g) was treated with formaldehyde according to General Procedure V to give (3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-7-((R)-1-phenyl-propyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carboxylic acid methyl ester (0.13 g). This was treated with LiOH in THF:MeOH (1:3) according to General Procedure B to give (3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-7-((R)-1-phenyl-propyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carboxylic acid (75 mg). LCMS (m/z): 604

Sources & evidence

ORD record: ord-3469487335e240caa05fdde2d5054d24
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08987295B2

Reaction notes

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