1-(3-氟苯基)-3,4-二氢异喹啉 在
锰 dichloromethane ethanol 作用下,
以
邻二氯苯 为溶剂,
反应 16.0h,
以264.74 g of a crystalline solid with 99% purity were obtained, corresponding to 99% of theory的产率得到1-(3'-fluoro)phenylisoquinoline
displayed excellent enantioselectivity and good reactivity in the asymmetric hydrogenation of challenging 1-aryl-substituted dihydroisoquinoline substrates (full conversions, up to >99% ee, 4000 TON). The use of 40% HBr (aqueous solution) as an additive dramatically improved the asymmetric induction of these catalysts. This transformation provided a highly efficient and enantioselective access to chiral
Provided is a compound useful as an N-type Ca2+ channel blocker. As a result of intensive studies of compounds having an action of blocking N-type Ca2+ channels, the present inventors found that a tetrahydroisoquinoline compound of the present invention having a substituent at the 1-position has an action of blocking the N-type Ca2+ channels, an antinociceptive pain action, an antineuropathic pain action, an abdominal pain-inhibitory action and an opioid-induced constipation-improving action, and the present invention has been completed based on these findings. The compound of the present invention can be used as a pharmaceutical composition for preventing and/or treating various pains such as neuropathic pain and nociceptive pain, headaches such as migraine and cluster headache, central nervous system diseases such as anxiety, depression, epilepsy, cerebral stroke and restless legs syndrome, abdominal symptoms such as abdominal pain and abdominal distension, stool abnormalities such as diarrhea and constipation, digestive system diseases such as irritable bowel syndrome, urinary system diseases such as overactive bladder and interstitial cystitis, etc.
The present invention describes new types of metal complexes. Such compounds can be used as functional materials in a series of different types of applications which can be classified within the electronics industry in the widest sense.
The inventive compounds are described by the formulae (1) and (4).
Photochromism of tetrahydroindolizines. Part XXVI: Mechanochemical synthesis, tunable photophysical properties and combined experimental and theoretical studies of novel photochromic tetrahydroindolizines
作者:Saleh A. Ahmed、Nizar El Guesmi、Anas A.B. Alsulami、Ziad Moussa、Abdullah Y.A. Alzahrani、Rami J. Obaid、François Maurel、Aboel-Magd A. Abdel-Wahab
DOI:10.1016/j.jphotochem.2022.114439
日期:2023.3
substituents in region C (base part) which include both electron donating and withdrawing groups in the ortho, meta and para positions of the phenyl ring. The absorption maxima (λmax) of both closed form (THI) and the colored form (betaine, after UV-irradiation) were spectrophotometrically determined in dichloromethane solution. The colored betaines displayed two absorption maxima, one between 472 and 485 nm