✦ LIBER ✦

Total synthesis of (±)-otonecine, a necine base of pyrrolizidine alkaloids

✍ Scribed by Haruki Niwa; Youchi Uosaki; Kiyoyuki Yamada

Book ID: 104226341
Publisher: Elsevier Science
Year: 1983
Tongue: French
Weight: 130 KB
Volume: 24
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)94186-8

No coin nor oath required. For personal study only.

✦ Synopsis

&one&z (l_), a hepfitinenAative necine base ad hepatoLotic and catroinog~tic py~~~oLLz~&ne aLkaLoL&, ~a6 nyntienized -in ~~~cemic dam #om eXhq1 I-hydtloxy-2,3,5,6-&&ahq&o-TH-pqwcoLLz~iu-7-catrboxy~~e (21.

📜 SIMILAR VOLUMES

(−)-Platynecine, a pyrrolizidine necine

(−)-Platynecine, a pyrrolizidine necine base

✍ Freer, A. A. ;Kelly, H. A. ;Robins, D. J. 📂 Article 📅 1987 🏛 International Union of Crystallography 🌐 English ⚖ 324 KB

Pyrrolizidine alkaloids necine bases: II

Pyrrolizidine alkaloids necine bases: II. Conformational analysis of free bases

✍ Giordan, Marcelo 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 335 KB 👁 1 views

Molecular mechanics calculations were applied to the Ž . conformational analysis of two diasteroisomers, the pyrrolizidine alkaloids PAs retronecine and heliotridine. The application of reoptimized parameters for H Ž . bonding corrected the tendency of MM3 92 calculations to give unrealistic H иии O

Stereoselective total synthesis of pyrro

Stereoselective total synthesis of pyrrolizidine alkaloid bases: (-)-rosmarinecine and (-)-isoretronecanol

✍ Tatsuta, Kuniaki; Takahashi, Hideaki; Amemiya, Yoshiya; Kinoshita, Mitsuhiro 📂 Article 📅 1983 🏛 American Chemical Society 🌐 English ⚖ 303 KB

First total synthesis of a new pyrrolizi

First total synthesis of a new pyrrolizidine alkaloid, amphorogynine A

✍ Hidemi Yoda; Takahisa Egawa; Kunihiko Takabe 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 252 KB

First Total Synthesis of a New Pyrrolizi

First Total Synthesis of a New Pyrrolizidine Alkaloid, Amphorogynine A.

✍ Hidemi Yoda; Takahisa Egawa; Kunihiko Takabe 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 63 KB 👁 2 views

Asymmetric total synthesis of natural py

Asymmetric total synthesis of natural pyrrolizidine alkaloid, (+)-alexine

✍ Hidemi Yoda; Hideaki Katoh; Kunihiko Takabe 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 96 KB

The total synthesis of the potent glycosidase inhibitor (+)-alexine with five contiguous stereogenic centres [(1R,2R,3R,7S,7aS)-3-hydroxymethyl-1,2,7-trihydroxypyrrolizidine alkaloid] is described featuring the efficient and stereodefined novel elaboration of the functionalized homochiral lactam der