Pactamycin and Its Derivatives: Improved Synthesis Route
Pactamycin and Its Derivatives: Improved Synthesis Route
复制标题
帕大霉素及其衍生物:改进的合成路线
DOI:
10.1002/ejoc.201901747
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发表时间:
2020
影响因子:
2.8
通讯作者:
Toshiyuki Kan
中科院分区:
文献类型:
--
作者:
Kohki Ohmi;Yusuke Miura;Yuta Nakao;Atsumi Goto;Satoshi Yoshimura;Hitoshi Ouchi;Makoto Inai;Tomohiro Asakawa;Fumihiko Yoshimura;Mitsuru Kondo;Toshiyuki Kan
Stereoselective construction of the cyclopentane core21of pactamycin (1) was achieved from symmetric cyclohexadiene7. Our synthetic strategy features catalytic Rh‐mediated desymmetric aziridination of the cyclohexadiene derivative, selective ring‐opening reaction at the C2 position of sulfonylaziridine with NaN3, ring‐contraction of cyclohexene9by ozonolysis followed by intramolecular aldol reaction via enamine intermediate11, and construction of the two consecutive tetra‐substituted carbon centers by stereoselective epoxidation of theexo‐methylene moiety of14cwith DMDO, followed by methylation reaction. Introduction of the urea unit on tetra‐substituted carbon of16was achieved by amidation and subsequent Hofmann rearrangement.
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影响因子:
15
作者:
Sharpe,RobertJ;Malinowski,JustinT;Johnson,JeffreyS
通讯作者:
Johnson,JeffreyS
影响因子:
5.2
作者:
Mami Yamaguchi;Minami Hayashi;Y. Hamada;T. Nemoto
通讯作者:
T. Nemoto
影响因子:
5.4
作者:
TABER, R;REKOSH, D;BALTIMORE, D
通讯作者:
BALTIMORE, D
影响因子:
16.6
作者:
Hanessian, Stephen;Vakiti, Ramkrishna Reddy;Deschenes-Simard, Benoit
通讯作者:
Deschenes-Simard, Benoit
影响因子:
5.2
作者:
Taejung Kim;S. Matsushita;So Matsudaira;T. Doi;S. Hirota;Young;M. Igarashi;Masaki Hatano;N. Ikeda;J. Ham;M. Nakata;Y. Saikawa
通讯作者:
Y. Saikawa