(S)-5-氯-alpha-(环丙基乙炔基)-2-[((4-甲氧基苯基)甲基)氨基]-alpha-(三氟甲基)苯甲醇

(S)-5-Chloro-α-(cyclopropylethynyl)-2-[[(4-methoxyphenyl)methyl]amino]-α-(trifluoromethyl)benzenemethanol is the S enantiomer of rac-5-Chloro-α-(cyclopropylethynyl)-2-[[(4-methoxyphenyl)methyl]amino]\n-α-(trifluoromethyl)benzenemethanol. (S)-5-Chloro-α-(cyclopropylethynyl)-2-[[(4-methoxyphenyl)methyl]amino]-α-(trifluoromethyl)benzenemethanol is also an impurity of Efavirenz, an HIV-1 reverse transcriptase inhibitor.