Search Results:　 1-20 of 259

1

Regio- and Stereocontrolled Reaction of Arenes with Ethyl Propiolate Catalyzed by Palladium or Platinum Complexes with a Bidentate Phosphine Ligand : An Efficient and Straightforward Synthesis of (1Z,3E)-1-Aryl-1,3-butadienes

Oyamada Juzo , Sakai Mariko , Yamada Yasunori 他

Bulletin of the Chemical Society of Japan 86(1), 129-137, 2013-01-00
2

STEREOSELECTIVE SYNTHESIS OF 2-SUBSTITUTED 1-IODO-1,3-DIENES BY THE ADDITION OF MeMgSnBu? TO THE CONJUGATED TERMINAL ENYNES : STEREOCONTROLLED SYNTHESIS OF (2E,4Z,6E)-DEHYDRODENDROLASIN (Dedicated to Professor Dr. Ei-ichi Negishi on the occasion of his 77th birthday)

Kawahama Reiko , Uenishi Jun'ichi

Heterocycles : an international journal for reviews and communications in heterocyclic chemistry 86(1), 649-658, 2012-12-31
3

SHORT AND STEREOCONTROLLED CYCLIC POLYGLYCEROLS SYNTHESIS USING BF?・OEt? MEDIATED INTRAMOLECULAR EPOXIDE-OPENING REACTION (Dedicated to Professor Dr. Ei-ichi Negishi on the occasion of his 77th birthday)

Hamada Masahiro , Kishimoto Takao , Nakajima Noriyuki

Heterocycles : an international journal for reviews and communications in heterocyclic chemistry 86(2), 1533-1539, 2012-12-31
4

STEREOCONTROLLED TOTAL SYNTHESIS OF (－)-FR901483 (Dedicated to Professor Dr. Ei-ichi Negishi on the occasion of his 77th birthday)

Ieda Shigeru , Masuda Akitaka , Kariyama Mami 他

Heterocycles : an international journal for reviews and communications in heterocyclic chemistry 86(2), 1071-1092, 2012-12-31
5

A stereocontrolled construction of 2-azido-2-deoxy-1,2-cis-α-galactosidic linkages utilizing 2-azido-4,6-O-benzylidene-2-deoxygalactopyranosyl diphenyl phosphates: stereoselective synthesis of mucin core 5 and core 7 structures

Kakita Kosuke , Tsuda Toshifumi , Suzuki Noritoshi , Nakamura Seiichi , Nambu Hisanori , Hashimoto Shunichi

… The synthetic utility of the present glycosidation method was demonstrated by a stereoselective synthesis of mucin-type glycopeptide core 5 and core 7 building blocks, which are suitable for Fmoc-based solid-phase synthesis of O-glycopeptides. …

Tetrahedron 68(25), 5005-5017, 2012-06-24

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6

Synthetic Studies on (+)-Biotin, Part 15: A Chiral Squaramide-Mediated Enantioselective Alcoholysis Approach toward the Total Synthesis of (+)-Biotin

Chen Xu-Xiang , Xiong Fei , Fu Han , Liu Zhi-Qian , Chen Fen-Er

… An efficient stereocontrolled total synthesis of (+)-biotin (1) has been achieved via the intermediacy of Roche's lactone 5 starting from cis-1,3-dibenzyl-2-imidazole-4,5-dicarboxylic acid (2). …

Chemical and Pharmaceutical Bulletin 59(4), 488-491, 2011

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7

Stereocontrolled Construction of 1,2-cis-α-Glycosidic Linkages Using Glycosyl Diphenyl Phosphates and Synthesis of α-Galactosylceramide KRN7000 [in Japanese]

NAMBU Hisanori , NAKAMURA Seiichi , SUZUKI Noritoshi , HASHIMOTO Shunichi

汎用性が高く立体選択的な1,2-cis-α-グリコシル化反応の開発は、糖鎖合成化学における重要な課題である。最近、我々はグリコシルジフェニルホスファートを糖供与体として用いる1,2-cis-α-グリコシド結合の高立体選択的構築を達成した。ベンジル基で保護したグルコースおよびガラクトース糖供与体、アセチル基で保護した2-アジド-2-デオキシ糖供与体を用いた場合、ジオキサン/エーテル(1:1)混合溶媒 …

Trends in Glycoscience and Glycotechnology 22(123), 26-40, 2010-03-31

J-STAGE CrossRef References (144)
8

Synthesis of Proteasome Inhibitor Omuralide Featuring Stereocontrolled Ugi Reaction and Novel Convertible Isocyanide

GILLEY Cynthia B. , BULLER Matthew J. , KOBAYASHI Yoshihisa

… Stereocontrolled formal total synthesis of proteasome inhibitor omuralide is described. … To this end, a novel convertible isocyanide was developed, which is readily available by preparative synthesis from nitrotoluene. …

Journal of Synthetic Organic Chemistry, Japan 67(11), 1183-1193, 2009-11-01

J-STAGE CrossRef References (89)
9

Development of highly efficient and stereocontrolled O-glycosylation methodologies and its application to the construction of bacterial glycans [in Japanese]

ISHIWATA Akihiro , ITO Yukishige

オリゴ糖や多糖の合成において，グリコシル化は鍵反応として繰り返しおこなわれるため，効率性，立体選択性の両方が重要となる。また，原核生物や真核生物の由来を問わず，様々な生物活性を持つ糖鎖にみられる構造である 1,2-cis グリコシドの合成法としては，決定的なものは少ない。我々は効率性と立体選択性の両面からアプローチして，種々の手法により，1,2-cis 選択的なグリコシル化反応の高効率な立体制御法 …

Trends in Glycoscience and Glycotechnology 21(121), 266-289, 2009-09-30

J-STAGE CrossRef References (127)
10

Stereocontrolled Synthesis of the DEFG-ring Skeleton of Gambieric Acids

FUWA Haruhiko , NOJI Sayaka , SASAKI Makoto

Chemistry letters 38(8), 866-867, 2009-08-05

References (27)
11

Stereocontrolled total synthesis of (±)-FR901483

Ieda Shigeru , Asoh Yusuke , Fujimoto Teppei 他

Heterocycles 79(1), 721-738, 2009-04-01
12

Synthesis and Biological Evaluation of 6,6-Spiroketal Natural Products : Reveromycin A,B and Spirofungin A,B [in Japanese]

SHIMIZU Takeshi

… The first asymmetric total synthesis of reveromycin A (1), a potent inhibitor of isoleucyl tRNA synthetase, has been accomplished based on the stereocontrolled construction of the 6,6-spiroketal system, efficient succinylation of the tert-alcohol under high pressure as a key step. …

Journal of Synthetic Organic Chemistry, Japan 67(1), 53-66, 2009-01-01

J-STAGE CrossRef References (39)
13

Structure-Controlled Synthesis of π-Conjugated Polymers by Means of Transition-Metal Catalysts [in Japanese]

WAKIOKA Masayuki , TAKITA Ryo , OZAWA Fumiyuki

… Recent progress in structure-controlled synthesis of π-conjugated polymers is described. … (d) stereocontrolled synthesis of poly (arylenevinylene)s (PAVs). …

NIPPON GOMU KYOKAISHI 81(10), 431-437, 2008-10-15

J-STAGE CrossRef References (49)
14

Stereocontrolled Total Synthesis of (-)-Gleenol Using Claisen Rearrangement of Sterically Congested Dihydropyran

NAKAZAKI Atsuo , ERA Tomohiro , KOBAYASHI Susumu

Chemistry letters 37(7), 770-771, 2008-07-05

References (23)
15

A cross-metathesis approach to the stereocontrolled synthesis of the AB ring segment of ciguatoxin

Kadota Isao , Abe Takashi , Uni Miyuki , Takamura Hiroyoshi , Yamamoto Yoshinori

… <p>Synthesis of the AB ring segments of ciguatoxin is described. … The present synthesis includes a Lewis acid mediated cyclization of allylstannane with aldehyde, cross-metathesis reaction introducing the side chain, and Grieco-Nishizawa dehydration on the A ring.</p> …

Tetrahedron Letters 49, 3643-3647, 2008-06-19

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16

Cascade and Multicomponent Reactions towards Rapid Synthesis of Highly Functionalized Cyclobutanes [in Japanese]

TAKASU Kiyosei

… Ideal strategies for preparing these structurally complex substances would involve sequences in which stereocontrolled formation of multiple carbon-carbon bonds occur in a single step starting with simple, readily available materials. …

Journal of Synthetic Organic Chemistry, Japan 66(6), 554-563, 2008-06-01

J-STAGE CrossRef References (48)
17

Stereocontrolled synthesis of cytotoxic anhydrosphingosine pachastrissamine by using [3.3] sigmatropic rearrangement of allyl cyanate

Ichikawa Yoshiyasu , Matsunaga Kenshi , Masuda Toshiya , Kotsuki Hiyoshizo , Nakano Keiji

Tetrahedron 64(49), 11313-11318, 2008-00-00

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18

Catalytic asymmetric hetero-Diels–Alder route to a key intermediate for the synthesis of calyxin L

Washio Takuya , Nambu Hisanori , Anada Masahiro , Hashimoto Shunichi

… A catalytic asymmetric formal synthesis of diarylheptanoid natural product calyxin L has been achieved by incorporating an enantio- and diastereoselective hetero-Diels-Alder (HDA) reaction, a Suzuki-Miyaura coupling, and a stereocontrolled catalytic hydrogenation of 2,4,6-trisubstituted dihydropyran as the key steps. …

Tetrahedron Asymmetry 18(21), 2606-2612, 2007-10-22

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19

34 Synthesis and Biological Evaluation of 6,6-Spiroketal Natural Products [in Japanese]

Shimizu Takeshi , Satoh Tomoharu , Fujikura Makoto , Murakoshi Katsunori , Usui Takeo , Kawatani Makoto , Osada Hiroyuki , Sodeoka Mikiko

… The stereocontrolled total synthesis of (-)-2 and (+)-3 has been achieved with the alkyne 7, the Weinreb amide 8, and the alkenylboronatev 6 readily available from the common intermediate alkyne 5 employing Horner-Emmons reaction and Suzuki coupling reaction for the construction of the both side chains. … The first synthesis proceeded with a longest linear sequence of 31 steps, affording (-)-spirofungin A and (+)-spirofungin B in 7.9% and 5.2% overall yields, respectively. …

天然有機化合物討論会講演要旨集 (49), 199-204, 2007-08-24

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20

Total Synthesis of Tricyclic Marine Alkaloids [in Japanese]

KIBAYASHI Chihiro , AOYAGI Sakae , ABE Hideki

… The purpose of this review is to describe some of our achievements in the total synthesis of the tricyclic marine alkaloids isolated from the ascidians such as fasicularin, lepadiformine, and cylindricine C. … The first total synthesis of (±) -fasicularin and (±) -lepadiformine was accomplished employing a stereocontrolled intramolecular hetero-Diels-Alder reaction of an <I>N</I>-acylnitroso moiety to an exocyclic diene. …

Journal of Synthetic Organic Chemistry, Japan 65(8), 805-819, 2007-08-01

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