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4-chloro-2-ethynylpyridine
2-ethynyl-4-(trifluoromethyl)pyridine
tert-butyl N-(5-ethynylpyridin-2-yl)carbamate
2-bromo-5-ethynylpyridine
2-ethoxy-5-ethynylpyridine
5-ethynyl-2-(2,2,2-trifluoroethoxy)pyridine
5-ethynylpyridin-2-ol
5-[2-(trimethylsilyl)ethynyl]pyridine-2-carbaldehyde
6-[2-(trimethylsilyl)ethynyl]pyridine-3-carbaldehyde
5-[2-(trimethylsilyl)ethynyl]pyridine-3-carbaldehyde
ethyl 5-[2-(trimethylsilyl)ethynyl]pyridine-3-carboxylate
{5-[2-(trimethylsilyl)ethynyl]pyridin-3-yl}boronic acid
tert-butyl N-(5-ethynylpyridin-3-yl)carbamate
tert-butyl N-(5-formylpyridin-3-yl)carbamate
tert-butyl N-[5-(chloromethyl)pyridin-3-yl]carbamate
(5-{[(tert-butoxy)carbonyl]amino}pyridin-3-yl)boronic acid
tert-butyl N-(4-ethynylpyridin-3-yl)carbamate
tert-butyl N-(6-ethynylpyridin-3-yl)carbamate
2-ethynyl-5-phenylpyridine
tert-butyl N-(4-ethynylpyridin-2-yl)carbamate
4-ethynyl-2-(trifluoromethyl)pyridine
4-[2-(trimethylsilyl)ethynyl]pyridine-2-carbaldehyde
4-ethynylpyridine-2-carbaldehyde
methyl 4-ethynylpyridine-2-carboxylate
4-ethynylpyridin-2-ol
4-ethynylpyridin-2-amine
5-ethynyl-2-(piperidin-1-yl)pyridine
4-(5-ethynylpyridin-2-yl)morpholine
5-ethynyl-N,N-dimethylpyridin-2-amine
5-ethynyl-2-(pyrrolidin-1-yl)pyridine
N,N-diethyl-5-ethynylpyridin-2-amine
4-bromo-3-ethynylpyridine
4-chloro-3-ethynylpyridine
3-ethynyl-4-methoxypyridine
tert-butyl N-(3-ethynylpyridin-4-yl)carbamate
methyl 3-ethynylpyridine-4-carboxylate
3-ethynylpyridine-4-carbaldehyde
3-[2-(trimethylsilyl)ethynyl]pyridine-4-carbaldehyde
2-chloro-3-ethynylpyridine
2-bromo-3-ethynylpyridine
3-ethynylpyridin-2-ol
2-ethoxy-3-ethynylpyridine
2,4-dichloro-3-ethynylpyridine
2,4-dichloro-5-ethynylpyridine
2,6-dichloro-4-ethynylpyridine
4-ethynyl-3-methoxypyridine
4-ethynylpyridin-3-amine
4-ethynyl-3-fluoropyridine
4-ethynylpyridine-3-carbaldehyde
4-[2-(trimethylsilyl)ethynyl]pyridine-3-carbaldehyde