Isopropyl chloroformate → Apd-668

HRID 1864117

Reaction equation

HRID 1864117 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([S:8]([CH3:11])(=[O:10])=[O:9])[CH:5]=[CH:4][C:3]=1[N:12]1[C:16]2=[N:17][CH:18]=[N:19][C:20]([O:21][CH:22]3[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]3)=[C:15]2[CH:14]=[N:13]1.C(N(CC)CC)C.Cl[C:36]([O:38][CH:39]([CH3:41])[CH3:40])=[O:37]>CN(C=O)C>[CH:39]([O:38][C:36]([N:25]1[CH2:24][CH2:23][CH:22]([O:21][C:20]2[N:19]=[CH:18][N:17]=[C:16]3[N:12]([C:3]4[CH:4]=[CH:5][C:6]([S:8]([CH3:11])(=[O:9])=[O:10])=[CH:7][C:2]=4[F:1])[N:13]=[CH:14][C:15]=23)[CH2:27][CH2:26]1)=[O:37])([CH3:41])[CH3:40]

Participants

5

Reactant 3

HCID 7917Isopropyl chloroformateHCID 8471TriethylamineHCID 218975531-(2-fluoro-4-methanesulfonyl-phenyl)-4-(piperidin-4-yloxy)-1H-pyrazolo[3,4-d]pyrimidine

Product 1

HCID 11705608Apd-668

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
0 °C

Procedure

In a 50 mL round-bottom flask was placed 1-(2-fluoro-4-methanesulfonyl-phenyl)-4-(piperidin-4-yloxy)-1H-pyrazolo[3,4-d]pyrimidine (80 mg, 0.2 mmol) and triethylamine (200 μl). DMF (3 mL) was added to completely dissolve the solid material. The reaction flask was immersed in an ice-bath. Isopropyl chloroformate (1.0M in toluene, 0.22 mL) was added to the solution and the mixture was stirred 2 h under N2 at 0° C. After all of the starting amine was completely converted as indicated by LCMS, the reaction was stopped by quenching with water. The reaction mixture was then concentrated under vacuum and purified by preparative HPLC to give 4-[1-(2-fluoro-4-methanesulfonyl-phenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy]-piperidine-1-carboxylic acid isopropyl ester (Compound A129). 1H NMR (CDCl3, 400MHz) δ 1.27 (d, 6H), 1.9 (m, 2H), 2.12 (m, 2H), 3.13 (s, 3H), 3.40 (m, 2H), 3.91 (m, 2H), 4.97 (m, 1H), 5.63 (m, 1H), 7.95 (m, 3H), 8.34 (s, 1H), 8.63 (s, 1H). Exact mass calculated for C21H24FN5O5S: 477.15, found 478.2 (MH+).

Workup

  1. customIn a 50 mL round-bottom flask was placed
  2. dissolutionto completely dissolve the solid material
  3. customThe reaction flask was immersed in an ice-bath
  4. customby quenching with water
  5. concentrationThe reaction mixture was then concentrated under vacuum
  6. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-80ddf456f3be4c5a9f9a95069c9b246c
Source dataset
uspto-grants-2009_12
Patent number
US07625906B2

Linked notes

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