Synthesis of new immunosuppressive myriocin analogs, 2-epi-myriocin, 14-deoxomyriocin, Z-14-deoxomyriocin, and nor-deoxomyriocins: their structure-activity relationships.

abstract：:In the previous paper, we reported the differentiation inducing activities of lignoids from Arctium Fructus (the fruits of Arctium lappa L., Compositae) against mouse myeloid leukemia cells (M1). We reinvestigated the active components of this extract and isolated three new dilignans. Furthermore, structure modificati...

journal_title：Chemical & pharmaceutical bulletin

authors： Umehara K,Nakamura M,Miyase T,Kuroyanagi M,Ueno A

更新日期：1996-12-01 00:00:00

abstract：:A new antibiotic indole trimer named trisindoline (1) was isolated, together with a known dioxopiperazine brevianamide F (2), from the culture of a bacterium of Vibrio sp., which was separated from the Okinawan marine sponge Hyrtios altum. The structure of trisindoline (1) has been determined on the bases of physicoch...

journal_title：Chemical & pharmaceutical bulletin

authors： Kobayashi M,Aoki S,Gato K,Matsunami K,Kurosu M,Kitagawa I

更新日期：1994-12-01 00:00:00

abstract：:From the ethanolic extract of the aerial parts of Globularia davisiana, a new iridoid glycoside, davisioside (1), was isolated. Davisioside (1) comprises a rare iridoid aglycone structure with a saturated double bond between C-3 and C-4. Nine known iridoid glycosides, asperuloside (2), alpinoside (3), geniposide (4), ...

journal_title：Chemical & pharmaceutical bulletin

authors： Caliş I,Kirmizibekmez H,Taşdemir D,Ireland CM

更新日期：2002-05-01 00:00:00

abstract：:Three aromatic compounds (2-4) possessing a carbomethoxyl group or a dimethoxyphthaloyl group, prepared by the Diels-Alder reaction of the cardiac glycoside, proscillaridin (1), with dimethyl acetylenedicarboxylate and methyl propiolate, were transformed into alcohols, carboxylic acids and amides. The biological activ...

journal_title：Chemical & pharmaceutical bulletin

authors： Tanase T,Murakami N,Nagai S,Ueda T,Sakakibara J,Ando H,Hotta Y,Takeya K

更新日期：1992-02-01 00:00:00

abstract：:Using tissue engineering technique to repair cartilage damage caused by osteoarthritis is a promising strategy. However, the regenerated tissue usually is fibrous cartilage, which has poor mechanical characteristics compared to hyaline cartilage. Chondrocyte hypertrophy plays an important role in this process. Thus, i...

journal_title：Chemical & pharmaceutical bulletin

authors： Cao Z,Dou C,Dong S

更新日期：2017-01-01 00:00:00

abstract：:Novel 1,2,3,4-tetrahydroisoquinoline derivatives bearing directly a cyclic amine at the 2-position were prepared and examined for their bradycardic activities in isolated right atria and in anesthetized rats. The structure-activity relationships (SAR) study revealed that the 2-(3-piperidyl)-1,2,3,4-tetrahydroisoquinol...

journal_title：Chemical & pharmaceutical bulletin

authors： Kakefuda A,Watanabe T,Taguchi Y,Masuda N,Tanaka A,Yanagisawa I

更新日期：2003-04-01 00:00:00

abstract：:A series of optically active substituted 1,2-dihydro-6-oxo-pyrrolo[3,2,1-ij]quinoline-5-carboxylic acids was prepared via optically active 2-methyl-4,5-difluoroindoline (10) and tested for antibacterial activities. Among them, (2S)-9-[(3R,1'S)-3-(1'-amino)ethyl-1-pyrrolidinyl]-8-fluoro-1,2-dihydro- 2- methyl-6-oxo-6H-...

journal_title：Chemical & pharmaceutical bulletin

authors： Tsuji K,Tsubouchi H,Ishikawa H

更新日期：1995-10-01 00:00:00

abstract：:In the course of our research on spiro-compounds as neurokinin receptor antagonists, N-[2-aryl-4-(spiro-substituted piperidin-1'-yl)butyl]carboxamides were designed, based on YM-35375 (3) as a lead compound, and evaluated for NK2 receptor-antagonistic activities. Some derivatives inhibited the binding of radio-labeled...

journal_title：Chemical & pharmaceutical bulletin

authors： Kubota H,Kakefuda A,Nagaoka H,Yamamoto O,Ikeda K,Takeuchi M,Shibanuma T,Isomura Y

更新日期：1998-02-01 00:00:00

abstract：:We have already reported unique compounds containing a N,O-spiro acetal structure as an orally active factor Xa (FXa) inhibitor. This time, we described a N,N-spiro acetal structure as an analogue of the N,O-spiro acetal structure for an orally active FXa inhibitor. The synthesis of these analogues could be achieved i...

journal_title：Chemical & pharmaceutical bulletin

authors： Saitoh F,Mukaihira T,Nishida H,Satoh T,Okano A,Yumiya Y,Ohkouchi M,Johka R,Matsusue T,Shiromizu I,Hosaka Y,Matsumoto M,Ohnishi S

更新日期：2006-11-01 00:00:00

abstract：:The effects of various chelating agents, sodium N-benzyl-D-glucamine dithiocarbamate (BGD), sodium N-p-methylbenzyl-D-glucamine dithiocarbamate (MBGD), sodium N-p-hydroxymethylbenzyl-D-glucamine dithiocarbamate (HBGD), and N-p-carboxybenzyl-D-glucamine dithiocarbamate (CBGD), which were newly synthesized, and sodium N...

journal_title：Chemical & pharmaceutical bulletin

authors： Shimada H,Kiyozumi M,Kawagoe M,Fukudome S,Kojima S

更新日期：1990-03-01 00:00:00

abstract：:A new lanostane-type triterpene, 29-hydroxypolyporenic acid C (8), was isolated from the dried sclerotia of Poria cocos together with eight other known compounds pachymic acid (1), dehydropachymic acid (2), 3-acetyloxy-16alpha-hydroxytrametenolic acid (3), polyporenic acid C (4), 3-epi-dehydropachymic acid (5), 3-epi-...

journal_title：Chemical & pharmaceutical bulletin

authors： Zhou L,Zhang Y,Gapter LA,Ling H,Agarwal R,Ng KY

更新日期：2008-10-01 00:00:00

abstract：:UV-Irradiation of taxinine and related compounds in acetonitrile induced a smooth transannulation between the C-3 and C-11 positions without any influence from the C-2, C-9 and C-10 substituents to give tetracyclic taxuspine C derivatives in almost quantitative yields. Photochemical transannular reaction of taxoids po...

journal_title：Chemical & pharmaceutical bulletin

authors： Sako M,Suzuki H,Hirota K

更新日期：1998-07-01 00:00:00

abstract：:The involvement of prostanoids in the improvement of adenine-induced renal failure in rats by magnesium lithospermate B was studied. After intraperitoneal administration of magnesium lithospermate B to renal failure rats, the levels of glomerular filtration rate, renal plasma flow and renal blood flow were increased. ...

journal_title：Chemical & pharmaceutical bulletin

authors： Yokozawa T,Chung HY,Lee TW,Oura H,Tanaka T,Nonaka G,Nishioka I,Hirai A

更新日期：1989-06-01 00:00:00

abstract：:An antibiotic formycin A inhibited growth of Vibrio parahaemolyticus under certain conditions, which suggested that formycin A was taken up by cells under these conditions. We found that formycin A was transported via the adenosine transport system which we previously reported as a Na(+)-coupled cotransport system. We...

journal_title：Chemical & pharmaceutical bulletin

authors： Sakai-Tomita Y,Mitani Y,Tsuda M,Tsuchiya T

更新日期：1991-05-01 00:00:00

abstract：:Three new limonoids, cipadesins D--F (1--3), together with 8,15-dihydroxy-13E-labdane, beta-sitosterol and beta-daucosterol, were isolated from the leaves and bark of Cipadessa cinerascens. Their structures were elucidated by spectral evidence. X-Ray crystallographic analysis confirmed the structure of 1. ...

journal_title：Chemical & pharmaceutical bulletin

authors： Yuan XH,Li BG,Xu CX,Zhou M,Qi HY,Zhang GL

更新日期：2007-06-01 00:00:00

abstract：:The title compounds, together with 3-vinylindolizine-1-carbonitriles (4-56%), were prepared in 1-18% yields from the S-alkylation of pyridinium 1-[3-ethoxycarbonyl-1-[cyanomethylthio(thiocarbonyl)]]all ylides with alkyl halides, followed by treatment of the resulting pyridinium salts with a base and then a dehydrogena...

journal_title：Chemical & pharmaceutical bulletin

authors： Kakehi A,Ito S,Hirata K,Zuo P

更新日期：2000-06-01 00:00:00

abstract：:Two new bile acids, tauroselocholic acid (1) and tauroansocholic acid (2), a new natural bile acid, cygnocholic acid (3) were respectively isolated from bear bile powder Selenaretos thibetanus CUVIER and bile of geese Anser anser domesticus, together with seven known compounds. By spectrum analysis of MS, 1D and 2D NM...

journal_title：Chemical & pharmaceutical bulletin

authors： Bi D,Chai XY,Song YL,Lei Y,Tu PF

更新日期：2009-05-01 00:00:00

abstract：:Analogs related to 1 alpha,25-dihydroxy-2 beta-(3-hydroxypropoxy)vitamin D3 (ED-71) (4), oxa-type and carba-type analogs of vitamin D3 bearing substituents at the 2 beta-position of 1 alpha,25-dihydroxyvitamin D3 (1), were synthesized from the alpha-epoxides (6 and 13). Three analogs, ED-71 (4) and two carba-type anal...

journal_title：Chemical & pharmaceutical bulletin

authors： Ono Y,Watanabe H,Shiraishi A,Takeda S,Higuchi Y,Sato K,Tsugawa N,Okano T,Kobayashi T,Kubodera N

更新日期：1997-10-01 00:00:00

abstract：:Self Microemulsifying Drug Delivery Systems (SMEDDS) are a novel alternative to the conventional transdermal delivery systems. SMEDDS are water-free systems, made up of oils and surfactants that can readily form a microemulsion upon dilution within an aqueous medium. Before SMEDDS can be used as a drug delivery system...

journal_title：Chemical & pharmaceutical bulletin

authors： Zargar-Shoshtari S,Wen J,Alany RG

更新日期：2010-10-01 00:00:00

abstract：:When 8-bromoadenosine was incubated with cysteine at pH 7.2 and 37°C, an exclusive product was generated. This product was identified as a cysteine substitution derivative of adenosine at the 8 position, 8-S-L-cysteinyladenosine. The reaction accelerated as pH increased from mildly acidic to basic conditions. The isol...

journal_title：Chemical & pharmaceutical bulletin

authors： Suzuki T,Ogishi A,Shinohara T,Suito S

更新日期：2018-01-01 00:00:00

abstract：:Three different sensitive and accurate spectroscopic procedures were developed for the determination of three angiotensin-converting enzyme inhibitors, namely, ramipril, enalapril maleate and fosinopril. The first two spectrophotometric (extractive and non-extractive) procedures were based on ternary complex formation...

journal_title：Chemical & pharmaceutical bulletin

authors： Baraka MM,El-Sadek M,Moussa EM,Abd-Alaty NM

更新日期：2008-11-01 00:00:00

abstract：:A series of 43 stilbene derivatives that showed cytotoxicity against human lung carcinoma (A549) was analyzed using comparative molecular field analysis (CoMFA) for defining the hypothetic pharmacophore model. The polyoxylated stilbenes were found to be active inhibitors of tubulin polymerization. Several cis-stilbene...

journal_title：Chemical & pharmaceutical bulletin

authors： Kim S,Min SY,Lee SK,Cho WJ

更新日期：2003-05-01 00:00:00

abstract：:Orally disintegrating tablets (ODTs), which are administered without water, are beneficial for elderly patients and patients with dysphagia. Masking the unpleasant taste of a drug is an important factor associated with adherence of patients consuming ODTs. We prepared cocoa powder-containing ODTs of bitter-tasting reb...

journal_title：Chemical & pharmaceutical bulletin

authors： Takano H,Uchida S,Kashiwagura Y,Tanaka S,Hakamata A,Odagiri K,Inui N,Watanabe H,Namiki N

更新日期：2019-01-01 00:00:00

abstract：:In order to confirm the proposed structures of two metabolites 3 and 4 of the gastroprokinetic agent mosapride [4-amino-5-chloro-2-ethoxy-N-([4-(4-fluorobenzyl)-2-morpholinyl] methyl)benzamide, 2], the compounds were synthesized and their biological activity was examined. The structures of the metabolites were confirm...

journal_title：Chemical & pharmaceutical bulletin

authors： Kato S,Morie T,Yoshida N

更新日期：1995-04-01 00:00:00

abstract：:Sodium nitroprusside (SNP) releases nitric oxide (NO), a powerful vasodilator, and thus widely used in intensive care unit for treating hypertension emergency. However, cardiac toxicity after SNP administration is a clinical problem. For finding a natural compound that suppressing SNP-induced cardiac toxicity, we test...

journal_title：Chemical & pharmaceutical bulletin

authors： Lee SR,Kwak JH,Noh SJ,Pronto JR,Ko KS,Rhee BD,Xu Z,Kim N,Han J

更新日期：2014-01-01 00:00:00

abstract：:Colon-specific drug delivery systems (CDDS) can improve the bioavailability of drug through the oral route. A novel formulation for oral administration using pH-enzyme Di-dependent chitosan mcirospheres (MS) and 5-Fu as a model drug has been investigated for colon-specific drug delivery by the emulsification/chemical ...

journal_title：Chemical & pharmaceutical bulletin

authors： Zhao XL,Li KX,Zhao XF,Pang DH,Chen DW

更新日期：2008-07-01 00:00:00

abstract：:Fourteen flavonol glycosides including two new compounds were isolated from the leaves of two Diospyros plants (D. cathayensis and D. rhombifolia). The structures of isolated compounds were determined by spectroscopic analysis. The scavenging activity of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical of the isolated com...

journal_title：Chemical & pharmaceutical bulletin

authors： Furusawa M,Tanaka T,Ito T,Nakaya K,Iliya I,Ohyama M,Iinuma M,Murata H,Inatomi Y,Inada A,Nakanishi T,Matsushita S,Kubota Y,Sawa R,Takahashi Y

更新日期：2005-05-01 00:00:00

abstract：:A novel macrocyclic diterpene, jatrophenone, has been isolated from the whole plant of Jatropha gossypifolia. The structure of the compound was established by detailed studies of its one- and two-dimensional (1D and 2D) NMR spectra. The compound possesses significant antibacterial activity. ...

journal_title：Chemical & pharmaceutical bulletin

authors： Ravindranath N,Venkataiah B,Ramesh C,Jayaprakash P,Das B

更新日期：2003-07-01 00:00:00

abstract：:Two new acetylenic glucosides, 4',6'-acetonide-8Z-decaene-4,6-diyne-1-O-beta-D-glucopyranoside named carthamoside A(1) (1) and 4,6-decadiyne-1-O-beta-D-glucopyranoside named carthamoside A(2) (2), along with one known acetylenic glucoside, 8Z-decaene-4,6-diyne-1-O-beta-D-glucopyranoside (3), have been isolated from th...

journal_title：Chemical & pharmaceutical bulletin

authors： Zhou YZ,Ma HY,Chen H,Qiao L,Yao Y,Cao JQ,Pei YH

更新日期：2006-10-01 00:00:00

abstract：:Corollosporine isolated from the marine fungus Corollospora maritima and N-analogous corollosporines are antimicrobial substances. Owing to the basic structure of the N-analogous corollosporines, they have become an attractive target for laccase-catalyzed derivatisation. In this regard we report on the straightforward...

journal_title：Chemical & pharmaceutical bulletin

authors： Mikolasch A,Hessel S,Salazar MG,Neumann H,Manda K,Gōrdes D,Schmidt E,Thurow K,Hammer E,Lindequist U,Beller M,Schauer F

更新日期：2008-06-01 00:00:00