Trifluoroacetic acid → 5-(2-Benzyl-2H-indazol-6-yl)-7-pyrrolidin-3-ylmethyl-pyrrolo[2,1-f][1,2,4]triazin-4-ylamine

HRID 1972891Notes

Reaction equation

HRID 1972891 reaction equation
C(OC([N:8]1[CH2:12][CH2:11][CH:10]([CH2:13][C:14]2[N:22]3[C:17]([C:18]([NH2:23])=[N:19][CH:20]=[N:21]3)=[C:16]([C:24]3[CH:25]=[CH:26][C:27]4[C:31]([CH:32]=3)=[N:30][N:29]([CH2:33][C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)[CH:28]=4)[CH:15]=2)[CH2:9]1)=O)(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[CH2:33]([N:29]1[CH:28]=[C:27]2[C:31]([CH:32]=[C:24]([C:16]3[CH:15]=[C:14]([CH2:13][CH:10]4[CH2:11][CH2:12][NH:8][CH2:9]4)[N:22]4[C:17]=3[C:18]([NH2:23])=[N:19][CH:20]=[N:21]4)[CH:25]=[CH:26]2)=[N:30]1)[C:34]1[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 585297003-[4-Amino-5-(2-benzyl-2H-indazol-6-yl)-pyrrolo[2,1-f][1,2,4]triazin-7-ylmethyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 585294185-(2-Benzyl-2H-indazol-6-yl)-7-pyrrolidin-3-ylmethyl-pyrrolo[2,1-f][1,2,4]triazin-4-ylamineYield 31.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

The product from Step 4 (0.10 g, 0.19 mmol) was dissolved in dichloromethane (3 mL) and TFA (0.14 mL, 1.95 mmol) was added. The mixture was stirred for 18 hours and concentrated. The residue was purified by preparative HPLC using 10-90% gradient of acetonitrile/water to provide 25 mg (31%) of the title compound. 1H-NMR (CD3OD-d4) 8.30-8.35 (m, 1H), 7.85-7.80 (m, 2 H), 7.67-7.64 (m, 1H), 7.40-7.22 (m, 5 H), 7.24 (dd, 1 H), 6.64 (s, 1 H), 5.67 (s, 2 H), 3.17-2.94 (m, 3 H), 2.77-2.68 (m, 2 H), 2.08-1.98 (m, 1 H), 1.70-1.59 (m, 1 H); LC-MS [M+H]+=424.2, RT=2.03 min.

Workup

  1. concentrationconcentrated
  2. customThe residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-a5805f77a21e4b8abb3470cda92ed8b8
Source dataset
uspto-grants-2013_04
Patent number
US08431695B2

Reaction notes

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