179120-92-4 5-Ethynyl-3-(1-methyl-2-pyrrolidinyl)pyridine Altinicline Pyridine, 3-ethynyl-5-((2S)-1-methyl-2-pyrrolidinyl)- Pyridine, 3-ethynyl-5-(1-methyl-2-pyrrolidinyl)-, (S)-