Diisopropylethylamine → (2,4-dimethyl-oxazol-5-yl)-{(S)-3-[6-(6-methoxy-5-methyl-pyridin-3-yl)-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidin-4-yloxy]-pyrrolidin-1-yl}-methanone

HRID 242326

반응식

HRID 242326 반응식
[CH3:1][C:2]1[O:3][C:4]([C:8]([OH:10])=O)=[C:5]([CH3:7])[N:6]=1.CCN(C(C)C)C(C)C.[CH3:20][O:21][C:22]1[N:27]=[CH:26][C:25]([N:28]2[CH2:43][CH2:42][C:31]3[N:32]=[CH:33][N:34]=[C:35]([O:36][C@H:37]4[CH2:41][CH2:40][NH:39][CH2:38]4)[C:30]=3[CH2:29]2)=[CH:24][C:23]=1[CH3:44]>CN(C=O)C>[CH3:1][C:2]1[O:3][C:4]([C:8]([N:39]2[CH2:40][CH2:41][C@H:37]([O:36][C:35]3[C:30]4[CH2:29][N:28]([C:25]5[CH:26]=[N:27][C:22]([O:21][CH3:20])=[C:23]([CH3:44])[CH:24]=5)[CH2:43][CH2:42][C:31]=4[N:32]=[CH:33][N:34]=3)[CH2:38]2)=[O:10])=[C:5]([CH3:7])[N:6]=1

참가 물질

5

반응물 3

HCID 81531Diisopropylethylamine2회HCID 1132979Dimethyl-1,3-oxazole-5-carboxylic acidHCID 574953306-(6-methoxy-5-methyl-pyridin-3-yl)-4-((S)-pyrrolidin-3-yloxy)-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidine

생성물 1

HCID 56651216(2,4-dimethyl-oxazol-5-yl)-{(S)-3-[6-(6-methoxy-5-methyl-pyridin-3-yl)-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidin-4-yloxy]-pyrrolidin-1-yl}-methanone수율 85.2%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매2회

실험 절차

A mixture of 2,4-dimethyl-oxazole-5-carboxylic acid (36.4 mg, 0.258 mmol), HTBU (98 mg, 0.258 mmol), DIPEA (86p1, 0.49 mmol) in DMF (5 mL) was stirred at rt for 20 min. then a solution of 6-(6-methoxy-5-methyl-pyridin-3-yl)-4-((S)-pyrrolidin-3-yloxy)-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidine (prepared in example 1, method 1b, step 2) (80 mg, 0.23 mmol) and DIPEA (86 μl, 0.49 mmol) in DMF (0.4 mL) was added. The reaction mixture was stirred 30 min at rt. The reaction mixture was directly purified by preparative reverse phase Gilson HPLC and subsequent neutralization of the combined fractions over PL-HCO3 MP gave (2,4-dimethyl-oxazol-5-yl)-{(S)-3-[6-(6-methoxy-5-methyl-pyridin-3-yl)-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidin-4-yloxy]-pyrrolidin-1-yl}-methanone (91 mg, 84% yield) as a white lyophilized powder. 1H-NMR (400 MHz, methanol-d4, 298K) δ ppm 2.17 (s, 3H) 2.27-2.52 (m, 8H) 2.95-3.03 (m, 2H) 3.44-3.55 (m, 2H) 3.70-4.26 (m, 9H) 5.76-5.92 (m, 1H) 7.40 (br. s., 1H) 7.64 (br. s., 1H) 8.55-8.62 (m, 1H), LCMS: [M+H]+=465.2, Rt(1)=1.51 min.

후처리

  1. stirringThe reaction mixture was stirred 30 min at rt
  2. customThe reaction mixture was directly purified by preparative reverse phase Gilson HPLC and subsequent neutralization of the combined fractions over PL-HCO3 MP

출처 및 근거

ORD 기록
ord-2abaa305b3ea4a47807bad42bbb55357
출처 데이터셋
uspto-grants-2014_02
특허 번호
US08653092B2

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