Using Secondary α Deuterium Kinetic Isotope Effects To Determine the Symmetry of S<sub>N</sub>2 Transition States
作者:Kenneth Charles Westaway、Thuy Van Pham、Yao-ren Fang
DOI:10.1021/ja962088f
日期:1997.4.1
The secondary α deuterium and heavy atom kineticisotopeeffects found for two different SN2 reactions suggest that the magnitude of secondary α deuteriumkineticisotopeeffects can be determined by the length of only the shorter (stronger) reacting bond in an unsymmetrical SN2 transition state rather than by the usual nucleophile−leaving group distance. Although this means the interpretation of these
This invention relates to novel compounds that are 3-benzazepine derivatives and pharmaceutically acceptable salts thereof. More specifically, this invention relates to novel 3-benzazepine derivatives that are derivatives of lorcaserin. This invention also provides compositions comprising one or more compounds of this invention and a carrier and the use of the disclosed compounds and compositions in methods of treating diseases and conditions that are beneficially treated by administering a 5-HT
2C
agonist, such as lorcaserin.
This invention relates to novel compounds that are 3-benzazepine derivatives and pharmaceutically acceptable salts thereof. More specifically, this invention relates to novel 3-benzazepine derivatives that are derivatives of lorcaserin. This invention also provides compositions comprising one or more compounds of this invention and a carrier and the use of the disclosed compounds and compositions in methods of treating diseases and conditions that are beneficially treated by administering a 5-HT2C agonist, such as lorcaserin. (I) or a pharmaceutically acceptable salt thereof, wherein: Ring A contains 0-7 deuterium atoms at the substitutable ring carbon positions; and R is CH3, CH2D, CD2H, or CD3; provided that when R is CH3, Ring A contains 1-7 deuterium atoms at the substitutable ring carbon positions.