[EN] MACROCYCLIZATION REACTIONS AND INTERMEDIATES USEFUL IN THE SYNTHESIS OF ANALOGS OF HALICHONDRIN B [FR] RÉACTIONS DE MACROCYCLISATION ET INTERMÉDIAIRES UTILES DANS LA SYNTHÈSE D'ANALOGUES DE L'HALICHONDRINE B
Synthetic studies on halichondrins: A practical synthesis of the C.1C.13 segment
摘要:
A practical, scalable synthesis of the C.1-C.13 segment of halichondrin B has been developed starting from L-mannonic-gamma-lactone, using C-allylation/oxy-Michael cyclization and Ni(II)/Cr(II)-mediated vinyltrimethylsilane addition to set the C.6/C.3 and C.11 stereocenters, respectively. Copyright (C) 1996 Elsevier Science Ltd
[EN] PROCESS FOR PREPARATION OF ERIBULIN AND INTERMEDIATES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ÉRIBULINE ET DE SES INTERMÉDIAIRES
申请人:DR REDDY’S LABORATORIES LTD
公开号:WO2017168309A1
公开(公告)日:2017-10-05
The present application relate to process for preparation of octahydropyrano [3, 2-b] pyran compound of formula II, which is useful as an intermediate for the preparation of halichondrin B analogues such as Eribulin or its pharmaceutically acceptable salts.
[EN] INTERMEDIATES FOR THE PREPARATION OF HALICHONDRIN B<br/>[FR] INTERMEDIAIRES POUR LA PREPARATION D'HALICHONDRINE B
申请人:EISAI CO LTD
公开号:WO2005118565A1
公开(公告)日:2005-12-15
The present invention provides macrocyclic compounds, synthesis of the same and intermediates thereto. Such compounds, and compositions thereof, are useful for treating or preventing proliferative disorders Formula (F-4).
Intermediates for the preparation of analogs of Halichondrin B
申请人:Eisai R&D Management Co., Ltd.
公开号:US07982060B2
公开(公告)日:2011-07-19
The present invention provides macrocyclic compounds, synthesis of the same and intermediates thereto. Such compounds, and compositions thereof, are useful for treating or preventing proliferative disorders Formula (F-4).
Structurally simplified macrolactone analogues of halichondrin B
作者:Boris M. Seletsky、Yuan Wang、Lynn D. Hawkins、Monica H. Palme、Gregory J. Habgood、Lucian V. DiPietro、Murray J. Towle、Kathleen A. Salvato、Bruce F. Wels、Kimberley K. Aalfs、Yoshito Kishi、Bruce A. Littlefield、Melvin J. Yu
DOI:10.1016/j.bmcl.2004.08.068
日期:2004.11
A structurally simplified macrolactone analogue of halichondrin B was identified that retains the potent cell growth inhibitory activity of the natural product in vitro. (C) 2004 Elsevier Ltd. All rights reserved.
Commercial Manufacture of Halaven®: Chemoselective Transformations En Route to Structurally Complex Macrocyclic Ketones
The evolution of the synthesis of Halaven (R) (E7389, INN eribulin mesylate) from a medicinal chemistry process to the execution of the final process on pilot scale is described. The completion of the synthesis of Halaven (R) from C1-C13 ester and C14-C35 sulfone alcohol involves a series of chemo-, regio-, and stereoselective transformations. Furthermore, a high-dilution macrocyclization presented a number of challenges for industrial-scale manufacture (throughput, processing time, and side reactions). This paper describes studies at Eisai leading to an understanding, optimization, and control of the chemistry that realized the reproducible commercial production of Halaven (R).