6-Ethyl-5-(trifluoromethyl)-2-pyridinamine丨CAS 136100-05-5

6-Ethyl-5-(trifluoromethyl)-2-pyridinamine (CAS 136100-05-5) is a heterocyclic compound primarily used as an intermediate in pharmaceutical and agrochemical synthesis. Its substituted pyridine core, featuring an amino group, ethyl group, and trifluoromethyl moiety, makes it a versatile building block for designing bioactive molecules with enhanced metabolic stability and lipophilicity. In drug discovery, it is employed in the preparation of kinase inhibitors, receptor modulators, and other therapeutic candidates where trifluoromethyl substitution improves pharmacokinetic and binding properties. In agrochemical research, it serves as a precursor for the development of herbicides, fungicides, and insecticides with improved efficacy. Additionally, it is used in fine chemical research for the synthesis of functionalized heterocycles and structure–activity relationship studies.

The benefits of 6-ethyl-5-(trifluoromethyl)-2-pyridinamine stem from its structural versatility and chemical reactivity. The amino group allows selective derivatization through coupling, acylation, or substitution reactions, while the trifluoromethyl group imparts high lipophilicity, metabolic stability, and electronic modulation, enhancing the potency and durability of derivatives. The ethyl group adds steric modulation, which can influence receptor binding and selectivity. Its heterocyclic framework supports incorporation into complex molecules efficiently, providing a reliable scaffold for pharmaceutical and agrochemical development. These features make it a valuable intermediate in designing molecules with optimized biological activity and chemical stability.