13067-27-1Relevant articles and documents
Research on the aromas. On the aroma of coffee. II. Pyrazines and pyridines
Goldman,Seibl,Flament,Gautschi,Winter,Willhalm,Stoll
, p. 694 - 705 (1967)
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Discovery of a piperazine urea based compound as a potent, selective, orally bioavailable melanocortin subtype-4 receptor partial agonist
Hong, Qingmei,Bakshi, Raman K.,Palucki, Brenda L.,Park, Min K.,Ye, Zhixiong,He, Shuwen,Pollard, Patrick G.,Sebhat, Iyassu K.,Liu, Jian,Guo, Liangqin,Cashen, Doreen E.,Martin, William J.,Weinberg, David H.,MacNeil, Tanya,Tang, Rui,Tamvakopoulos, Constantin,Peng, Qianping,Miller, Randy R.,Stearns, Ralph A.,Chen, Howard Y.,Chen, Airu S.,Strack, Alison M.,Fong, Tung M.,MacIntyre, D. Euan,Wyvratt, Matthew J.,Nargund, Ravi P.
scheme or table, p. 2330 - 2334 (2011/05/15)
We report the discovery of piperazine urea based compound 1, a potent, selective, orally bioavailable melanocortin subtype-4 receptor partial agonist. Compound 1 shows anti-obesity efficacy without potentiating erectile activity in the rodent models.
Supersonic jet studies of alkyl-substituted pyrazines and pyridines. Minimum energy conformations and torsional motion
Seeman, Jeffey I.,Paine III, John B.,Secor, Henry V.,Im, Hoong-Sun,Bernstein
, p. 5269 - 5280 (2007/10/02)
Conformational reference for methyl-, ethyl-, propyl-, and isoproply-substituted pyrazines and pyridines are determined by mass resolved excitation spectroscopy (MRES) and MOPAC 5/PM3 semiempirical calculations. The results of these studies suggest that the conformational behavior of alkyl-substituted pyrazines and pyridines is different from that of alkyl-subtituted benzenes. Based on the experimental and semiempirical theoretical results reported herein and published ab initio calculations, this difference can be attributed to a stabilizing interaction between an α-hydrogen atom of alkyl subsituted and the adjacent lone pair nonbonding electrons on the ring nitrogen atom.