Trifluoroacetic acid → HCID 89662822, compound

HRID 1479092Notes

Reaction equation

HRID 1479092 reaction equation
C(OC([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=2[C:21]([N:23]2[CH2:37][C:26]3=[C:27]4[N:32]([N:33]=[C:25]3[CH2:24]2)[C:31]([CH3:34])=[C:30]([Cl:35])[C:29]([CH3:36])=[N:28]4)=[O:22])[CH2:10][CH2:9]1)=O)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[Cl:35][C:30]1[C:29]([CH3:36])=[N:28][C:27]2[N:32]([N:33]=[C:25]3[CH2:24][N:23]([C:21]([C:16]4[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=4[CH2:14][CH:11]4[CH2:12][CH2:13][NH:8][CH2:9][CH2:10]4)=[O:22])[CH2:37][C:26]3=2)[C:31]=1[CH3:34]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 89649630HCID 89649630, compound

Product 1

HCID 89662822HCID 89662822, compoundYield 77.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 4-[2-(6-chloro-5,7-dimethyl-1H,3H-2,4,7a,8-tetraaza-cyclopenta[a]indene-2-carbonyl)-benzyl]-piperidine-1-carboxylic acid tert-butyl ester (210 mg; 0.4 mmol; 1 eq.) and TFA (2 mL) in DCM (2 mL) was stirred at room temperature for 2 hours then concentrated in vacuo. The residue was taken up in water, the pH made basic with 5M NaOH and extracted with DCM (2×). The combined organic layer was dried over magnesium sulfate and concentrated in to afford the title compound (131 mg, 77%) as an off-white solid. 1H NMR (CDCl3) δ 7.38-7.24 (m, 4H), 5.04-5.01 (m, 2H), 4.51 (s, 1.3H), 4.48 (s, 0.7H), 3.04-2.96 (m, 2H), 2.91 (s, 2H), 2.85 (s, 1H), 2.70 (s, 1H), 2.61-2.57 (m, 4H), 2.53-2.43 (m, 2H), 1.80-1.57 (m, 4H), 1.19-1.06 (m, 2H). HPLC (max plot) 100%, Rt 2.75 min. UPLC/MS: (MS+) 424.4 ([M+H]+).

Workup

  1. concentrationthen concentrated in vacuo
  2. extractionextracted with DCM (2×)
  3. dry with materialThe combined organic layer was dried over magnesium sulfate
  4. concentrationconcentrated in

Sources & evidence

ORD record
ord-1034aae6f709471bab79279cc851ac53
Source dataset
uspto-grants-2016_08
Patent number
US09403835B2

Reaction notes

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