Threoninol → (2R,3R)-2-(1,3-dihydroxybut-2-ylamino)-8-isopropyl-4-[4-(pyridin-2-yl)benzylamino]pyrazolo[1,5-a]-1,3,5-triazine

反応式

[OH:1][CH2:2][C@H:3]([NH:6][C:7]1[N:12]=[C:11]([NH:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][N:22]=3)=[CH:17][CH:16]=2)[N:10]2[N:27]=[CH:28][C:29]([CH:30]([CH3:32])[CH3:31])=[C:9]2[N:8]=1)[CH2:4][CH3:5].N[C@H](CO)[C@@H](C)[OH:36]>>[OH:1][CH2:2][C@@H:3]([NH:6][C:7]1[N:12]=[C:11]([NH:13][CH2:14][C:15]2[CH:16]=[CH:17][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][N:22]=3)=[CH:19][CH:20]=2)[N:10]2[N:27]=[CH:28][C:29]([CH:30]([CH3:31])[CH3:32])=[C:9]2[N:8]=1)[C@H:4]([OH:36])[CH3:5]

参加物

反応物 2

HCID 2033049Threoninol

HCID 46910588(2R)-2-[[8-isopropyl-4-[[4-(2-pyridyl)phenyl]methylamino]pyrazolo[1,5-a][1,3,5]triazin-2-yl]amino]butan-1-ol

生成物 1

HCID 46910764(2R,3R)-2-(1,3-dihydroxybut-2-ylamino)-8-isopropyl-4-[4-(pyridin-2-yl)benzylamino]pyrazolo[1,5-a]-1,3,5-triazine収率 43%

実験手順

According to the same conditions resulting in the preparation of the compound 2, the compound 12 is prepared from IIa.2 by oxidation reaction of the sulfur atom and then introduction of L-threoninol. Yield=43%. Oil. 1H NMR (300 MHz, CDCl3): δ 8.69 (d, 1H, J=4.7 Hz, Harom), 7.97 (d, 2H, J=8.3 Hz, Harom), 7.78-7.69 (m, 2H, Harom), 7.63 (8, 1H, Harom), 7.45 (d, 2H, J=8.3 Hz, Harom), 7.26-7.21 (m, 1H, Harom), 6.75 (bs, 1H, NH), 5.63 (d, 1H, J=5.8 Hz, NH), 4.77 (d, 2H, J=6.0 Hz, CH2), 4.22-4.15 (m, 1H, CH), 3.97-3.84 (m, 3H, CH+CH2), 3.01 (hept, 1H, J=7.0 Hz, CH), 1.29 (d, 3H, J=6.2 Hz, CH3), 1.28 (d, 6H, J=7.0 Hz, 2 CH3). MS (ESI): m/z 448 (MH+).

出典と根拠

ORDレコード: ord-e03b4d94063d450eabc3d27671d1d920
出典データセット: uspto-grants-2014_04
DOI: 10.6084/m9.figshare.5104873.v1
特許番号: US08691982B2

反応ノート

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