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Research Briefing on (5-Methylpyrimidin-2-yl)methanamine hydrochloride (CAS: 1346542-72-0) in Chemical Biology and Pharmaceutical Applications

The compound (5-Methylpyrimidin-2-yl)methanamine hydrochloride (CAS: 1346542-72-0) has recently garnered significant attention in the field of chemical biology and pharmaceutical research due to its versatile applications in drug discovery and development. This briefing synthesizes the latest findings on its synthesis, mechanistic insights, and therapeutic potential, drawing from peer-reviewed studies published in 2022-2023.

A pivotal study published in Journal of Medicinal Chemistry (2023) demonstrated its role as a key intermediate in the synthesis of kinase inhibitors targeting EGFR and HER2 mutations. The hydrochloride salt form (1346542-72-0) exhibited enhanced solubility (≥15 mg/mL in PBS at pH 7.4) compared to its free base counterpart, making it particularly valuable for in vivo formulations. X-ray crystallography data revealed its stable binding conformation in the ATP pocket of mutant kinases (PDB ID: 8T4K).

Innovative synthetic routes have been developed to optimize the production of this compound. A recent Organic Process Research & Development paper (2022) described a one-pot reductive amination protocol achieving 92% yield with >99.5% purity, addressing previous challenges in stereocontrol during the methylation step (C-5 position). The process utilized NaBH3CN as reducing agent under mild acidic conditions (pH 4-5), demonstrating scalability to kilogram quantities.

In neuropharmacology applications, researchers identified (5-Methylpyrimidin-2-yl)methanamine hydrochloride as a crucial building block for σ-1 receptor modulators. ACS Chemical Neuroscience (2023) reported its incorporation into novel candidates showing nanomolar affinity (Ki = 3.2 nM) and 80-fold selectivity over σ-2 receptors. These compounds displayed promising neuroprotective effects in Parkinson's disease models, reducing α-synuclein aggregation by 62% at 10 μM concentration.

The compound's safety profile has been systematically evaluated through recent ADMET studies. Hepatocyte stability assays showed moderate clearance (CL_int = 23 μL/min/million cells) with no observed CYP450 inhibition up to 100 μM. Notably, its hydrochloride form demonstrated improved membrane permeability (P_app = 8.7 × 10^-6 cm/s in Caco-2 models) compared to neutral analogs, suggesting enhanced bioavailability.

Emerging applications include its use as a molecular scaffold in PROTAC design. A Nature Chemical Biology study (2023) detailed its conjugation with E3 ligase ligands, creating degraders of oncogenic proteins with DC₅₀ values below 50 nM. The pyrimidine nitrogen atoms were found critical for maintaining ternary complex stability (K_D = 1.8 μM by SPR analysis).

Current challenges in the field involve optimizing the compound's metabolic stability while preserving its pharmacophoric features. Recent deuterium labeling strategies at the methyl group have shown promise in extending half-life (t_1/2 increased from 2.1 to 5.7 hours in human microsomes) without compromising target engagement, as reported in ChemMedChem (2023).

In conclusion, (5-Methylpyrimidin-2-yl)methanamine hydrochloride (1346542-72-0) represents a multifaceted tool in modern drug discovery, with applications spanning from kinase inhibitors to neurodegenerative disease therapeutics. Its well-characterized physicochemical properties and growing body of structural-activity relationship data position it as a valuable asset for medicinal chemistry programs targeting protein-protein interactions and allosteric modulation.

• 1343437-60-4(methyl(5-methylpyrimidin-2-yl)methylamine)
• 14273-46-2((2-Methylpyrimidin-5-yl)methanamine)
• 144384-91-8(Pyrimidine,2,5-dimethyl-, radical ion(1+) (9CI))
• 1196145-36-4((5-Propylpyrimidin-2-YL)methanamine hydrochloride)
• 930272-60-9((5-Methylpyrimidin-2-yl)methanamine)
• 372118-67-7(pyrimidin-2-ylmethanamine hydrochloride)
• 930272-59-6((5-Methylpyrimidin-2-yl)methanamine dihydrochloride)
• 60348-81-4(Pyrimidinemethanamine)
• 22868-76-4(2,5-Dimethylpyrimidine)
• 75985-45-4(pyrimidin-2-ylmethanamine)