Zobrazeno 1 - 10
of 291
pro vyhledávání: '"Shiro Terashima"'
Autor:
Naoki Ando, Shiro Terashima
Publikováno v:
Tetrahedron. 66:6224-6237
A novel synthesis of 2-amino-1H-imidazol-4-carbaldehyde derivatives was achieved by the reaction of tert-butoxycarbonylguanidine with 3-bromo-1,1-dimethoxypropan-2-one as a key step. The usefulness of the derivatives as building blocks was proved by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adc11d312a5ff2fa016105d3ab8c526c
https://doi.org/10.1016/j.tet.2010.05.074
https://doi.org/10.1016/j.tet.2010.05.074
Autor:
Kohei Ohata, Shiro Terashima
Publikováno v:
Tetrahedron. 65:2244-2253
The title total synthesis was achieved by employing deconjugative asymmetric α-sulfenylation of the chiral 3-(α,β,γ,δ-unsaturated acyl)oxazolidin-2-one with a 3,3-dimethoxypropyl methanethiosulfonate as a key step. From the biological activity a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f176e16aa08e7a6c18a94a0ccbdcb51
https://doi.org/10.1016/j.tet.2009.01.054
https://doi.org/10.1016/j.tet.2009.01.054
Autor:
Naoki Ando, Shiro Terashima
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 17:4495-4499
Ageladine A (1) and its analogs 2–10 were expeditiously synthesized by featuring the biosynthetic route proposed for 1 (for 1–10) and by employing 2-(N-t-butoxycarbonylamino)imidazol-4-carbaldehyde as the starting material (for 1–8). From MMP-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9676130b7b3fa362de2da3992fda859
https://doi.org/10.1016/j.bmcl.2007.06.005
https://doi.org/10.1016/j.bmcl.2007.06.005
Autor:
Kohei Ohata, Shiro Terashima
Publikováno v:
Tetrahedron Letters. 47:2787-2791
Starting with commercially available tiglic aldehyde, the title synthesis was achieved by employing deconjugative asymmetric α-sulfenylation of the chiral 3-(α,β,γ,δ-unsaturated acyl)-2-oxazolidinone with a methanethiosulfonate as a key step.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3227ce9291f4a0afc7fda62c89308442
https://doi.org/10.1016/j.tetlet.2006.02.058
https://doi.org/10.1016/j.tetlet.2006.02.058
Autor:
Shiro Terashima, Sanae Furuya
Publikováno v:
Tetrahedron Letters. 44:6875-6878
The title synthesis was achieved starting with 3-ethoxy-2-cyclohexenone by a method featuring Davis’ asymmetric hydroxylation and Pauson–Khand reaction as the key steps.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6239cf9aa0890fe5333ca1092ef4e78f
https://doi.org/10.1016/s0040-4039(03)01739-8
https://doi.org/10.1016/s0040-4039(03)01739-8
Publikováno v:
Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 86:61-70
The number of parameters necessary for the word N-gram model is equal to the n-th power of the size of the vocabulary. As a result, compression of the parameter space is vital, depending on the field in question. In this research, singular value deco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf9616d752ac8ddeedef1542c85f519b
https://doi.org/10.1002/ecjc.10106
https://doi.org/10.1002/ecjc.10106
Publikováno v:
Tetrahedron. 59:3019-3040
Synthesis of the model compounds of carzinophilin carrying 2-methylidene-1-aza-bicyclo[3.1.0]hexane systems was achieved. Formation of malonylidenes or N-acyl-glycinylidenepyrrolidines was carried out by utilizing Eschenmoser's sulfide contraction or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88a66107bb1fcd23fa79f61e04932dff
https://doi.org/10.1016/s0040-4020(03)00377-6
https://doi.org/10.1016/s0040-4020(03)00377-6
Publikováno v:
Tetrahedron. 59:3063-3087
The synthetic procedures of the title compound ( 2 ), a protected form of carzinophilin ( 1 ), were developed. While efforts toward the total synthesis of 1 failed, comparison of the 1H NMR spectra of 2 and some other related compounds with that of 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2865bacb3d2c56675122c5246964f8d3
https://doi.org/10.1016/s0040-4020(03)00379-x
https://doi.org/10.1016/s0040-4020(03)00379-x
Publikováno v:
Bioorganic & Medicinal Chemistry. 11:1169-1186
With an aim to disclose the convergency and flexibility of our previously explored synthetic route to natural himbacine 1, and moreover, to clarify some novel aspects of the structure–activity relationships of 1, we prepared various structural type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4dcb715d0b35d2bdb1e4531b5c2acf0
https://doi.org/10.1016/s0968-0896(02)00665-x
https://doi.org/10.1016/s0968-0896(02)00665-x
Publikováno v:
Tetrahedron. 59:3041-3062
A model compound bearing the C1–C17 fragment of carzinophilin was synthesized. The synthesis involved coupling reaction of a cyclic thioimidate with the 4H-oxazol-5-one derivative, ring-opening of the 4H-oxazol-5-one to furnish a dehydropeptide sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c4e33613e09ad9961aa4bac224c89a
https://doi.org/10.1016/s0040-4020(03)00378-8
https://doi.org/10.1016/s0040-4020(03)00378-8