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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1972858Generated: November 4, 2026

1-Methylpiperazine → 5-(2-Benzyl-2H-indazol-6-yl)-7-[4-(4-methyl-piperazin-1-ylmethyl)-phenyl]-pyrrolo[2,1-f][1,2,4]triazin-4-ylamine

https://huagongshe.com/reaction/1972858

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
Reactant5-(2-benzyl-2H-indazol-6-yl)-7-(4-bromomethyl-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-4-ylamineHCID 69303291—
Product5-(2-Benzyl-2H-indazol-6-yl)-7-[4-(4-methyl-piperazin-1-ylmethyl)-phenyl]-pyrrolo[2,1-f][1,2,4]triazin-4-ylamineHCID 5852967110%

Reaction Steps

Using a procedure similar to that of Example 282 (step 2) with 5-(2-benzyl-2H-indazol-6-yl)-7-(4-bromomethyl-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-4-ylamine and 1-methyl-piperazine as starting materials, 25 mg (10%) of the desired product was isolated. 1H NMR (300 MHz, DMSO-d6) δ 8.80 (s, 1 H), 8.05 (d, 2 H), 8.00 (s, 1 H), 7.90 (d, 1 H), 7.70 (s, 1 H), 7.60-7.40 (m, 7 H), 7.25 (d, 1 H), 7.20 (s, 1 H), 5.70 (s, 2 H), 3.50 (s, 2 H), 2.50 (m, 4 H), 2.30 (s, 4 H), 2.10 (s, 3 H); ES-MS m/z 529.05 [M+H]+, HPLC RT (min) 2.27.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08431695B2
Source datasetuspto-grants-2013_04
ORD IDord-a723aef26ed6490b99e1379b00504dd7
Source noteuspto-grants-2013_04