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Anticancer Agent인 Methotrexate에 대한 새로운 합성 연구
유의경, 류성렬, Yu. Euy Kyung, Ryu. Seoung Ryuall 대한화학회 대한화학회지 5 Pages
대한화학회 대한화학회지 1993, Vol.37 No.1 136-140 (5 pages)
합성하기 위하여 p-nitrobenzoic acid를 chlorination한 다음 L-glutamic acid와 coupling하고 이를 esterification한 후, 환원과 methylation시켜 diethyl N-(4-methylaminobenzoyl)-L-glutamate(7)를 합성하였다. 이 화합물(7)을 DMF 존재하에서 NaH와 allyl chloride를 가하여 allylation한 다음 여기에 $IN_3$ addition 반응으로 diethyl-p-[N-(2-azido-3-iodopropyl)-N-methyl]aminobenzoyl-L-glutamate(9)를 합성하였다. 이 화합물(9)을 2,4,5,6-tetraaminopyrimidine hydrochloride와 cyclization시켜 methotrexate diethylester를... -
Phosphates 및 Phosphoric Amides의 합성 (제1보)
최길영, 최삼권, Choi. Kil-Yeong, Choi. Sam-Kwon 대한화학회 대한화학회지 6 Pages
대한화학회 대한화학회지 1980, Vol.24 No.6 457-462 (6 pages)
Phosphoryl chloride와 allyl alcohol, 2,3-dibromopropanol, 2-pyrrolidone, ethylenimine을 반응하여 여러가지 phosphate와 phospshoric amide를 합성하였다. 합성한 화합물은 모두 열에 불안정하였으며, allyl phosphorodichloridate와 diallyl phosphorochloridate는 증류하면 상당량의 중합체가 생겼다. IR 스펙트라에서는 $1,300∼1,200 cm^{-1}$에서 P=O stretching의 특성밴드가 나타났으며 NMR 스펙트라는 인원자의 long range coupling 효과로 인해 복잡한 피이크를 보였다. 2,3-dibromopropyl phosphordichloridate의 mass... -
Roles of Dopaminergic D1 and D2 Receptors in Catecholamine Release from the Rat Adrenal Medulla
YoungJooBaek, YooSeongSeo, DongYoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.1 3 13-24 (12 pages)
The aim of the present study was designed to establish comparatively the inhibitory effects of D1-like and D2-like dopaminergic receptor agonists, SKF81297 and R(-)-TNPA on the release of catecholamines (CA) evoked by cholinergic stimulation and membrane depolarization from the isolated perfused model of the rat adrenal medulla. SKF81297 (30ՌM) and R-(-)-TNPA (30ՌM) perfused into an adrenal vein for 60 min, produced great inhibition in the CA secretory responses evoked by ACh... -
Influence of SKF81297 on Catecholamine Release from the Perfused Rat Adrenal Medulla
Deok-HoChoi, Jong-HeeCha, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.5 6 197-206 (10 pages)
The aim of the present study was to investigate the effects of 6-chloro-7,8-dihydroxy-1-phenyl-2,3, 4,5-tetrahydro-1H-3-benzazepine (SKF81297), a selective agonist of dopaminergic D1 receptor, on the secretion of catecholamines (CA) evoked by cholinergic stimulation and membrane-depolarization in the isolated perfused rat adrenal gland, and also to elucidate the mechanism involved. SKF81297 (10∼100μM) perfused into an adrenal vein for 60 min produced dose- and time-dependent inhibition of CA... -
R-(-)-TNPA, a Dopaminergic D2 Receptor Agonist, Inhibits Catecholamine Release from the Rat Adrenal Medulla
Soon-PyoHong, Hong-JooSeo, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.5 8 273-282 (10 pages)
The aim of the present study was to investigate the effects of R-()-2,10,11-trihydroxy-N-propylnoraporphine [R-()-TNPA], a selective agonist of dopaminergic D2 receptor and S()-raclopride, a selective antagonist of dopaminergic D2 receptor, on the secretion of catecholamines (CA) evoked by cholinergic stimulation and membrane-depolarization in the isolated perfused model of the rat adrenal gland, and also to establish its mechanism of action. R-()-TNPA (10∼100μM)... -
Microwave-assisted pretreatment technologies for the conversion of lignocellulosic biomass to sugars and ethanol: a review
Pradeep Puligundla, Sang-Eun Oh, Chulkyoon Mok 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 1 1-10 (10 pages)
Lignocellulosic biomass conversion to biofuels such as ethanol and other value-added bio-products including activated carbons has attracted much attention. The development of an efficient, cost-effective, and eco-friendly pretreatment process is a major challenge in lignocellulosic biomass to biofuel conversion. Although several modern pretreatment technologies have been introduced, few promising technologies have been reported. Microwave irradiation or microwave-assisted methods (physical and...
