An Asymmetric Total Synthesis of Tupichilignan A using Donor-Acceptor Cyclopropanes: A Structural Revision of Tupichilignan A

2017 ◽  
Vol 6 (8) ◽  
pp. 977-980 ◽  
Author(s):  
Yumi Kimura ◽  
Yoshitomo Sone ◽  
Taichi Saito ◽  
Takehito Mochizuki ◽  
Yoshinori Nishii
Keyword(s):  
Total Synthesis ◽  
Asymmetric Total Synthesis ◽  
Structural Revision ◽  
Donor Acceptor

Total synthesis and structural revision of an isopanepoxydone analog isolated from Lentinus strigellus

2018 ◽  
Vol 16 (27) ◽  
pp. 5043-5049 ◽  
Author(s):  
Yi Man ◽  
Shaomin Fu ◽  
Juan Chen ◽  
Bo Liu
Keyword(s):  
Molecular Structure ◽  
Total Synthesis ◽  
Natural Product ◽  
Asymmetric Total Synthesis ◽  
Structural Revision

Asymmetric total synthesis of compound 1, as a proposed molecular structure of a natural product, in 11 steps is described. The inconsistency of the characterization data prompted us to propose a different structure as compound 2 and accordingly accomplish total synthesis in 9 steps and confirm the structural revision of this natural product.

Total Synthesis of (+)-Granatumine A and Related Bislactone Limonoid Alkaloids via a Pyran to Pyridine Interconversion

2019 ◽  
Author(s):  
Timothy Newhouse ◽  
Alexander Schuppe ◽  
Yizhou Zhao ◽  
Yannan Liu
Keyword(s):  
Total Synthesis ◽  
Inhibitory Activity ◽  
Knoevenagel Condensation ◽  
Cost Effective ◽  
Effective Procedure ◽  
Direct Transformation ◽  
Structural Revision ◽  
Alpha Beta ◽  
Ptp 1B

We report the first total synthesis of (+)-granatumine A, a limonoid alkaloid with PTP-1B inhibitory activity, in 10 steps. Over the course of this study, two key methodological advances were made: a cost effective procedure for ketone alpha,beta-dehydrogenation using allyl-Pd catalysis, and a Pd-catalyzed protocol to convert epoxyketones to 1,3-diketones. The central tetrasubstituted pyridine is formed by a convergent Knoevenagel condensation and carbonyl-selective electrocyclization cascade, which was followed by a direct transformation of a 2<i>H</i>-pyran to a pyridine. These studies have led to the structural revision of two members of this family.

ChemInform Abstract: ASYMMETRIC TOTAL SYNTHESIS OF 11α-HYDROXYPROGESTERONE VIA A BIOMIMETIC POLYENE CYCLIZATION

1978 ◽  
Vol 9 (12) ◽  
Author(s):  
W. S. JOHNSON ◽  
R. S. BRINKMEYER ◽  
V. M. KAPOOR ◽  
T. M. YARNELL
Keyword(s):  
Total Synthesis ◽  
Asymmetric Total Synthesis

Asymmetric Total Synthesis of Norzoanthamine

2021 ◽  
Author(s):  
Zhengyuan Xin ◽  
Hui Wang ◽  
Haibing He ◽  
Xiaoli Zhao ◽  
Shuanhu Gao
Keyword(s):  
Total Synthesis ◽  
Asymmetric Total Synthesis

scholarly journals Asymmetric Total Synthesis of Hetiamacins A–F

ACS Omega ◽  
2021 ◽  
Vol 6 (12) ◽  
pp. 8239-8245
Author(s):  
Gang Wu ◽  
Ting Wang ◽  
Zhongke Jiang ◽  
Shaowei Liu ◽  
Chenghang Sun
Keyword(s):  
Total Synthesis ◽  
Asymmetric Total Synthesis

Asymmetric Total Synthesis and Determination of the Absolute Configuration of (+)-Srilankenyne via Sequence-Sensitive Halogenations Guided by Conformational Analysis

2021 ◽  
Vol 23 (4) ◽  
pp. 1321-1326
Author(s):  
Hongjun Jang ◽  
Soo Yeon Kwak ◽  
Dongjoo Lee ◽  
Juan V. Alegre-Requena ◽  
Hyoungsu Kim ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Conformational Analysis ◽  
Absolute Configuration ◽  
Asymmetric Total Synthesis ◽  
The Absolute

Asymmetric Total Synthesis of Amphirionin-2

2021 ◽  
Author(s):  
Dhiman Saha ◽  
Gour Hari Mandal ◽  
Rajib Kumar Goswami
Keyword(s):  
Total Synthesis ◽  
Asymmetric Total Synthesis

Asymmetric Total Synthesis of ent-Tetrahydrolipstatin from an Epoxy Alkenol

Synlett ◽  
2012 ◽  
Vol 23 (12) ◽  
pp. 1832-1834 ◽  
Author(s):  
Jinsung Tae ◽  
Hyemi Kim ◽  
Kyeonghwan Choi
Keyword(s):  
Total Synthesis ◽  
Asymmetric Total Synthesis
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