Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Mihoko Yanai"'
Publikováno v:
Bioscience, Biotechnology, and Biochemistry. 72:1764-1771
(-)-10-epi-Axisonitrile-3, a spirocyclic sesquiterpene isocyanide obtained from the marine sponge Geodia exigua, immobilized sperm of sea urchin and starfish to block fertilization at the minimum effective concentration of 0.4 microg/ml. On the other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::525685668d0456f4bf949eb8c7e70b7d
https://doi.org/10.1271/bbb.80071
https://doi.org/10.1271/bbb.80071
Publikováno v:
Tetrahedron. 59:731-736
Three new spirocyclic sesquiterpenes designated exiguamide ( 1 ), exicarbamate ( 2 ) and exigurin ( 3 ), together with (−)-10- epi -axisonitrile-3 ( 4 ), have been isolated from the marine sponge Geodia exigua . All four compounds possess the spiro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c9cc2788078069a719f4204dbd5f5c3
https://doi.org/10.1016/s0040-4020(02)01619-8
https://doi.org/10.1016/s0040-4020(02)01619-8
Autor:
Mitsuaki Kodama, Suzuyo Yoshio, Hideaki Hioki, Hidenori Ooi, Shinji Ohta, Susumu Ikegami, Yumi Mimura, Masayo Hamano, Mihoko Yanai
Publikováno v:
Tetrahedron. 57:1235-1246
A compound having the structure proposed for hippospongic acid A, a triterpene that specifically inhibits gastrulation of starfish embryos, was synthesized enantioselectively. The synthetic compound was not identical to the natural product. Compariso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1131c6a050af71cdf0d757bf1828677d
https://doi.org/10.1016/s0040-4020(00)01129-7
https://doi.org/10.1016/s0040-4020(00)01129-7
Publikováno v:
Scopus-Elsevier
Two new norsesterterpenes, rhopaloic acids B ( 2 ) and C ( 3 ), have been isolated from the marine sponge Rhopaloeides sp. together with the known rhopaloic acid A ( 1 ). Their structures have been elucidated by spectroscopic methods. Compounds 1, 2,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5292bae616606dac483fb88ec6482ad9
https://doi.org/10.1016/s0040-4020(98)01013-8
https://doi.org/10.1016/s0040-4020(98)01013-8
Autor:
Mitsuaki Kodama, Susumu Ikegami, Masayo Hamano, Mihoko Yanai, Hideaki Hioki, Shinji Ohta, Yumi Mimura
Publikováno v:
ChemInform. 30
The structure of hippospongic acid A was reinvestigated and new evidence supporting the revised structure previously proposed was obtained. The structure, including absolute configuration, was established by the enantioselective synthesis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33600294996a7eed9ee553dba68edba1
https://doi.org/10.1002/chin.199901184
https://doi.org/10.1002/chin.199901184
Publikováno v:
ChemInform. 30
Two new norsesterterpenes, rhopaloic acids B ( 2 ) and C ( 3 ), have been isolated from the marine sponge Rhopaloeides sp. together with the known rhopaloic acid A ( 1 ). Their structures have been elucidated by spectroscopic methods. Compounds 1, 2,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e76660eb22eb74f4dd7e47d5371c558e
https://doi.org/10.1002/chin.199919192
https://doi.org/10.1002/chin.199919192
Autor:
Yumi Mimura, Mitsuaki Kodama, Mihoko Yanai, Hidenori Ooi, Hideaki Hioki, Shinji Ohta, Susumu Ikegami, Suzuyo Yoshio, Masayo Hamano
Publikováno v:
ChemInform. 32
A compound having the structure proposed for hippospongic acid A, a triterpene that specifically inhibits gastrulation of starfish embryos, was synthesized enantioselectively. The synthetic compound was not identical to the natural product. Compariso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5de2d7df2a9c8ba28592281d291475f4
https://doi.org/10.1002/chin.200122127
https://doi.org/10.1002/chin.200122127
Publikováno v:
Natural product research. 21(8)
One novel and three known hydroxycinnamic acid derivatives having antioxidant activities were isolated from a Brazilian bee pollen. They were identified as kaempferol 3-O-[2-O-p-coumaroyl]-alpha-L-arabinopyranoside, N(1), N(5), N(10)-tri-p-coumaroyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0076559993df4fe9e2975424d02ff948
https://pubmed.ncbi.nlm.nih.gov/17616901
https://pubmed.ncbi.nlm.nih.gov/17616901
A new 20-membered macrolide designated exiguolide has been isolated from the marine sponge Geodia exigua, and its structure determined by interpretation of spectroscopic data. Exiguolide specifically inhibited fertilization of sea urchin (Hemicentrot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfe326d55ca796c6f1146cbf9b74321c
http://ir.lib.hiroshima-u.ac.jp/00015026
http://ir.lib.hiroshima-u.ac.jp/00015026
Publikováno v:
ChemInform. 34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30d358ff4b59e7096498a7e9a93b94a0
https://doi.org/10.1002/chin.200322191
https://doi.org/10.1002/chin.200322191