Triphenylphosphine → HCID 178501318、化合物

HRID 386246ノート

反応式

HRID 386246 の反応式
[Cl:1][C:2]1[C:3]2[C:10]([I:11])=[CH:9][NH:8][C:4]=2[N:5]=[CH:6][N:7]=1.[CH3:12][O:13][C:14]([C@H:16]1[CH2:19][C@H:18](O)[CH2:17]1)=[O:15].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1COCC1>[CH3:12][O:13][C:14]([C@H:16]1[CH2:19][C@@H:18]([N:8]2[C:4]3[N:5]=[CH:6][N:7]=[C:2]([Cl:1])[C:3]=3[C:10]([I:11])=[CH:9]2)[CH2:17]1)=[O:15]

参加物

6

反応物 4

HCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 148092816-Chloro-7-iodo-7-deazapurineHCID 178501328HCID 178501328、化合物

生成物 1

HCID 178501318HCID 178501318、化合物

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
85 °C

実験手順

To a mixture of 4-chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine (prepared according to: L. B. Townsend et al., J. Med. Chem. 1990, 33 (7), 1984-92) (2.10 g, 7.51 mmol), trans-3-hydroxycyclobutanecarboxylic acid methyl ester (trans/cis=5:1) (1.11 g, 8.53 mmol), and PS—PPh3 (loading 2.21 mmol/g; 6.80 g, 15.0 mmol) in dry THF (80 mL), cooled by ice/water, was added DIAD (2.20 mL, 2.26 g, 11.2 mmol), then the cooling bath was removed, and the mixture was vortexed (150 rpm) overnight. The resin was filtered off and washed thoroughly with THF (≈400 mL), the filtrate and washings were combined, concentrated, and chromatographed on silica gel [Jones Flashmaster, 50 g/150 mL cartridge, eluting with CH2Cl2 (1-16)→5% EtOAc in CH2Cl2 (17-40)]. Fractions 3-32 were combined, concentrated, and suspended in iPrOH (10 mL). The suspension was heated to 85° C. for 20 min and cooled to −20° C. for 2 h, the solid was filtered off, washed with cold (−20° C.) iPrOH, and dried in vacuo. One obtained the title compound as white solid. Analytically pure material with cis/trans=50:1 had a melting point of 168-169° C. 1H NMR (CDCl3, 400 MHz): δ=2.66-2.78 (m, 2H), 2.81-2.93 (m, 2H), 3.06 (quint, J=8.7 Hz, 1H), 3.76 (s, 3H), 5.32 (quint, J=8.7 Hz, 1H), 7.68 (s, 1H), 8.60 (s, 1H). 13C NMR (CDCl3, 100.6 MHz, DEPT135): δ=30.93 (+), 34.09 (2C, −), 44.65 (+), 51.58 (Cquart), 52.19 (+), 117.07 (Cquart), 131.87 (+), 150.48 (Cquart), 150.72 (+), 152.69 (Cquart), 174.31 (Cquart). MS (ES+): m/z 391.9/393.9 (100/38) [MH+]. HPLC: tR=3.5 min (OpenLynx, polar—5 min). C12H11ClIN3O2 (391.60): C: calc. 36.81, found 36.88/36.78; H: calc. 2.83, found 2.81/2.76; N: calc. 10.73, found 10.59/10.50.

後処理

  1. customthe cooling bath was removed
  2. custom(150 rpm) overnight
  3. filtrationThe resin was filtered off
  4. washwashed thoroughly with THF (≈400 mL)
  5. concentrationconcentrated
  6. customchromatographed on silica gel [Jones Flashmaster, 50 g/150 mL cartridge
  7. washeluting with CH2Cl2 (1-16)→5% EtOAc in CH2Cl2 (17-40)]
  8. concentrationconcentrated
  9. temperaturecooled to −20° C. for 2 h
  10. filtrationthe solid was filtered off
  11. washwashed with cold (−20° C.) iPrOH
  12. customdried in vacuo

出典と根拠

ORDレコード
ord-c558e7110d8e494ba8d08fc4540cfcf6
出典データセット
uspto-grants-2013_02
特許番号
US08367826B2

反応ノート

読み込み中…