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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 723124Generated: October 25, 2026

4-Amino-2-methyl-5-pyrimidinemethanamine → 4-{6-[(4-Amino-pyrimidin-5-ylmethyl)-amino]-5-bromo-pyridine-3-sulfonyl}-5-methylsulfanyl-thiophene-2-carboxamidine trifluoroacetate

https://huagongshe.com/reaction/723124

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Amino-2-methyl-5-pyrimidinemethanamineHCID 66762—
ReactantTrifluoroacetic acid methylene chlorideHCID 21863450—
Reactanttert-butyl N-[4-[(5-bromo-6-chloro-3-pyridinyl)sulfonyl]-5-methylsulfanylthiophene-2-carboximidoyl]carbamateHCID 140043501—
SolventTetrahydrofuranHCID 8028—
Product4-{6-[(4-Amino-pyrimidin-5-ylmethyl)-amino]-5-bromo-pyridine-3-sulfonyl}-5-methylsulfanyl-thiophene-2-carboxamidine trifluoroacetateHCID 21886450—

Reaction Steps

The reaction was conducted following the procedure for Example 164: step c, using {[4-(5-bromo-6-chloro-pyridine-3-sulfonyl)-5-methylsulfanyl-thiophen-2-yl]-imino-methyl}-carbamic acid tert-butyl ester (0.035 g, 0.067 mmol), 4-amino-5-aminomethyl-2-methylpyrimidine (0.018 g, 0.135 mmol), THF [2 mL], followed by DCM/TFA (1:1) and reverse-phase HPLC to yield the title compound. ESI-MS (m/z): Calcd. for C18H19BrN6O2S3: 528.48 (M+H); found 528.0, 529.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07138530B2
Source datasetuspto-grants-2006_11
ORD IDord-092647fa57204c6da302e5245aab0d17
Source noteuspto-grants-2006_11