Search Results - "TSUYUKI, TAKAHIKO"

YANDANZIOLIDE D, A NEW C19-QUASSINOID ISOLATED FROM BRUCEA JAVANICA (L.) MERR by Yoshimura, shin, Ogawa, keiichiro, Tsuyuki, Takahiko, Takahashi, Takeyoshi, Honda, Tadashi

“…A new quassinoid, yadanziolide D, was isolated from Brucea javanica (L.) MERR and the structure was determined to be (5S, 10S)-13β, 20-epoxy-11β, 12α, 14,…”
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Bitter Principles of Ailanthus altissima SWINGLE. Structure Determination of Shinjuglycosides E and F by NIIMI, YOSHIO, TSUYUKI, TAKAHIKO, TAKAHASHI, TAKEYOSHI, MATSUSHITA, KAZUHIRO

“…Two new quassinoid glycosides, shinjuglycosides E and F, were isolated from the root bark of Ailanthus altissima SWINGLE and their structures were established…”
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Bitter Principles of Ailanthus altissima SWINGLE. Studies on Oxidative Degradation of the A-Ring of Ailanthone Derivatives by ISHIBASHI, MASAMI, FURUNO, TETSUO, HIETTER, HÉLÈNE, TSUYUKI, TAKAHIKO, TAKAHASHI, TAKEYOSHI

“…12, 20-Diacetoxy-11, 16-dioxo-1, 2-secopicrasa-3, 12-diene-1, 2-dioic acid and 12α-acetoxy-11β, 20-epoxy-11α-methoxy-16-oxo-1, 2-secopicrasa-3, 13 (21)…”
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New quassinoid glycosides, yadanziosides A-H, from Brucea javanica by Sakaki, T, Yoshimura, S, Ishibashi, M, Tsuyuki, T, Takahashi, T, Honda, T, Nakanishi, T

“…Eight new antileukemic quassinoid glycosides, yadanziosides A-H (1-8) were isolated from seeds of Brucea javanica and their structures were determined by…”
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A PARTIAL SYNTHESIS OF ISOMULTIFLORENOL FROM DENDROPANOXIDE by Takai, Masaki, Tori, Motoo, Tsuyuki, Takahiko, Takahashi, Takeyoshi, Itai, Akiko, Iitaka, Yoichi

“…Epoxidation of alnus-5 (10)-en-3β-yl acetate (3) with m-chloroperbenzoic acid gave a 5α, 10α-epoxide (4), which was subjected to the BF3·OEt2-catalyzed…”
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The Structure of Arjungenin. A New Sapogenin from Terminalia arjuna by HONDA, TADASHI, MURAE, TATSUSHI, TSUYUKI, TAKAHIKO, TAKAHASHI, TAKEYOSHI

“…The structure of a new sapogenin, arjungenin, isolated from Terminalia arjuna was shown to be 2α, 3β, 19α, 23-tetrahydroxyolean-12-en-28-oic acid (I)…”
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structures of nigakihemiacetals E and F by Murae, T, Sugie, A, Tsuyuki, T

“…The structures of two new bitter principles, nigakihemiacetals E and F, isolated from Picrasma ailanthoides PLANCHON were shown to be 1 and 2, respectively…”
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structure of Nigakilactone J by Murae, T, Tsuyuki, T, Takahashi, T

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Bitter principle of Picrasma ailanthoides Planchon; Nigakihemiacetal C by Murae, T, Ikeda, T, Tsuyuki, T, Nishihama, T, Takahashi, T

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structures of nigakilactones K and L by Murae, T, Sugie, A, Tsuyuki, T, Takahashi, T

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Notes: A Simple Method for the Preparation of Diethyl Carbonate-(carbonyl-C14) from Barium Carbonate-C14 by Tsuyuki, Takahiko, Simamura, Osamu

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YADANZIOSIDE P, A NEW ANTILEUKEMIC QUASSINOID GLYCOSIDE FROM BRUCEA JAVANICA (L.) MERR WITH THE 3-O-(β-D-GLUCOPYRANOSYL)BRUCEANTIN STRUCTURE by Sakaki, Toshio, Yoshimura, Shin, Tsuyuki, Takahiko, Takahashi, Takeyoshi, Honda, Tadashi

“…A new antileukemic quassinoid glycoside, yadanzioside P, was isolated from "Ya-dan-zi", the seeds of Brucea javanica (L.) Merr. The structure was determined to…”
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Structures of yadanziolides A, B, and C, new bitter principles from Brucea javanica by Yoshimura, S, Sakaki, T, Ishibashi, M, Tsuyuki, T, Takahashi, T, Matsushita, K, Honda, T

“…Three bitter quassinoids, yadanziolides A, B, and C (1, 2 and 3), were isolated from seeds of Brucea javanica, known as"Ya-dan-zi" in Chinese folklore and…”
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CONVERSION OF AILANTHONE INTO SHINJUDILACTONE, A BACKBONE-REARRANGED PICRASANE by Ishibashi, Masami, Tsuyuki, Takahiko, Murae, Tatsushi, Takahashi, Takeyoshi

“…On heating with sodium hydrogencarbonate in aqueous methanol, ailanthone (2) afforded 13 (12→11α) abeo-picrasanes [or 9 (11→12α) abeo-picrasanes],…”
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Structures of shinjulactones D and E, new bitter principles of Ailanthus altissima Swingle by Ishibashi, M, Furuno, T, Tsuyuki, T, Takahashi, T, Matsushita, K

“…Two bitter quassinoids, shinjulactones D and E (1 and 2), were isolated from Ailanthus altissima SWINGLE and their structures were determined to be 11β,…”
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