1,1,1-Trifluoropropan-2-yl carbonochloridate → 1,1,1-Trifluoropropan-2-yl 4-(4-(4-(methylsulfonyl)phenylamino)-6H-pyrimido[5,4-b][1,4]oxazin-8(7H)-yl)piperidine-1-carboxylate

HRID 657582노트

반응식

HRID 657582 반응식
Cl.F[C:3]1[CH:8]=[C:7]([S:9]([CH3:12])(=[O:11])=[O:10])[CH:6]=[CH:5][C:4]=1[NH:13][C:14]1[C:19]2[O:20][CH2:21][CH2:22][N:23]([CH:24]3[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]3)[C:18]=2[N:17]=[CH:16][N:15]=1.Cl[C:31]([O:33][CH:34]([CH3:39])[C:35]([F:38])([F:37])[F:36])=[O:32]>C(Cl)Cl>[CH3:12][S:9]([C:7]1[CH:8]=[CH:3][C:4]([NH:13][C:14]2[C:19]3[O:20][CH2:21][CH2:22][N:23]([CH:24]4[CH2:25][CH2:26][N:27]([C:31]([O:33][CH:34]([CH3:39])[C:35]([F:38])([F:37])[F:36])=[O:32])[CH2:28][CH2:29]4)[C:18]=3[N:17]=[CH:16][N:15]=2)=[CH:5][CH:6]=1)(=[O:11])=[O:10]

참가 물질

4

반응물 2

HCID 582703481,1,1-Trifluoropropan-2-yl carbonochloridateHCID 67038626N-(2-fluoro-4-(methylsulfonyl)phenyl)-8-(piperidin-4-yl)-7,8-dihydro-6H-pyrimido[5,4-b][1,4]oxazin-4-amine hydrochloric acid salt

생성물 1

HCID 670386641,1,1-Trifluoropropan-2-yl 4-(4-(4-(methylsulfonyl)phenylamino)-6H-pyrimido[5,4-b][1,4]oxazin-8(7H)-yl)piperidine-1-carboxylate수율 51%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a suspension of N-(2-fluoro-4-(methylsulfonyl)phenyl)-8-(piperidin-4-yl)-7,8-dihydro-6H-pyrimido[5,4-b][1,4]oxazin-4-amine hydrochloric acid salt from Example 8A (35.5 mg, 0.08 mmol) in CH2Cl2 (1.5 mL) was added DIEP (70 μL, 0.40 mmol, Aldrich) followed by addition of 1,1,1-trifluoropropan-2-yl chloroformate (⅓ of the material from Step A, 0.33 mmol) in CH2Cl2 (0.5 mL). The reaction mixture was stirred for 30 min and then evaporated under the reduced pressure to yield the crude product which was purified by preparative HPLC (C18 column; 10-100% acetonitrile in water containing 0.05% trifluoroacetic acid) to give the desired product (33.9 mg, off-white solid, 51%) upon lyophilization. 1H NMR (500 MHz, CDCl3, 50° C.). δ 8.42 (t, J=8.25 Hz, 1 H), 8.31 (brs, 1 H), 8.14 (s, 1 H), 7.59-7.78 (m, 2 H), 5.18-5.34 (m, 1 H), 4.78-4.93 (m, 1 H), 4.22-4.41 (m, 4 H), 3.47-3.55 (m, 2 H), 3.04 (s, 3 H), 2.88-3.07 (m, 2 H), 1.79 (m, 2 H), 1.60-1.75 (m, 2 H), 1.42 (d, J=6.60 Hz, 3 H).). LRMS (ESI) 548 (M+H)+.

후처리

  1. additionwas added DIEP (70 μL, 0.40 mmol, Aldrich)
  2. customevaporated under the reduced pressure
  3. customto yield the crude product which
  4. customwas purified by preparative HPLC (C18 column; 10-100% acetonitrile in water containing 0.05% trifluoroacetic acid)

출처 및 근거

ORD 기록
ord-106f4d20666747a0badfdf67603fe3ab
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08076322B2

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