1,3-Dioxolane → (4-Benzyloxyphenyl)-(6-(5-(1,3-dioxolan-2-yl)furan-2-yl)-pyrido[3,4-d]pyrimidin-4-yl)-amine

HRID 51109

Reaktionsgleichung

Reaktionsgleichung von HRID 51109
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([NH:15][C:16]2[C:17]3[CH:25]=[C:24](Cl)[N:23]=[CH:22][C:18]=3[N:19]=[CH:20][N:21]=2)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[O:27]1[CH2:31][CH2:30][O:29][CH:28]1[C:32]1[O:36][C:35]([Sn](CCCC)(CCCC)CCCC)=[CH:34][CH:33]=1.O1CCOC1.C(OC1C=CC(NC2C3C=C(C4OC(C=O)=CC=4)N=CC=3N=CN=2)=CC=1)C1C=CC=CC=1>O1CCOCC1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([NH:15][C:16]2[C:17]3[CH:25]=[C:24]([C:35]4[O:36][C:32]([CH:28]5[O:29][CH2:30][CH2:31][O:27]5)=[CH:33][CH:34]=4)[N:23]=[CH:22][C:18]=3[N:19]=[CH:20][N:21]=2)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

7

Edukt 4

HCID 125861,3-DioxolaneHCID 10960952Stannane, tributyl[5-(1,3-dioxolan-2-yl)-2-furanyl]-HCID 219520464-(4-Benzyloxyanilino)-6-(5-formylfuran-2-yl) pyrido[3,4-d]pyrimidineHCID 219521684-(4-Benzyloxyanilino)6-chloropyrido[3,4-d]pyrimidine

Produkt 1

HCID 21952199(4-Benzyloxyphenyl)-(6-(5-(1,3-dioxolan-2-yl)furan-2-yl)-pyrido[3,4-d]pyrimidin-4-yl)-amine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6102075Dichlorobis(triphenylphosphine)palladiumKatalysatorHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

Reaction of (4-benzyloxyphenyl)-(6-chloro-pyrido[3,4-d]pyrimidin-4-yl)amine (5.44 g, 15.0 mmol), 5-(1,3-dioxolan-2-yl)-2-(tributylstannyl)furan (10.4 g, 24.2 mmol) and bis(triphenylphosphine)palladium (II) chloride (catalytic amount) in dioxane (150 ml) according to Procedure B, followed by purification by silica gel chromatography (eluted with 50-100% EtOAc/i-hexane), allowed the isolation of the dioxolane product (3.45 g, 7.40 mmol, 49%); δH [2H6]DMSO 10.28 (1H, s), 9.13 (1H, s), 8.69 (1H, s), 8.61 (1H, s), 7.71 (2H, d), 7.31-7.52 (5H, m), 7.14 (1H, d), 7.09 (2H, d), 6.77 (1H, d), 6.03 (1H, s), 5.15 (2H, s), 3.95-4.19 (4H, m). This could then be converted to 5-(4-(4-Benzyloxy-phenylamino)-pyrido[3,4-d]pyrimidin-6-yl)-furan-2-carbaldehyde (identical to that described above) using Procedure C.

Aufarbeitung

  1. customfollowed by purification by silica gel chromatography (eluted with 50-100% EtOAc/i-hexane)

Quellen und Nachweise

ORD-Eintrag
ord-7462f8e959bf46b0b5777772ab529d32
Quelldatensatz
uspto-grants-2004_03
Patentnummer
US06713485B2

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