Transformations of taxol

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07D30514

Patent

active

055042228

ABSTRACT:
A method for esterifying C13 deoxy taxoid intermediates employs three steps, i.e., oxygenation of the C13 deoxy taxoid intermediate to produce a C13 enone taxoid intermediate; reduction of the C13 enone to produce an alcohol; followed by esterification of the C13 alcohol. Key intermediates include C13 deoxy taxoids; C13 enone substituted taxoids; and C1-C2 cyclo carbonate esters of taxoids.

REFERENCES:
Holton, R. "Method for Preparation of Taxol", Chem. Abstracts: 114, 164568q (1990).
Griffith et al. "TRAP: Tetra-N-Propylammonium Perruthenate, A Mild and Convenient Oxidant for Alcohols", Aldrichimic Acta: 23, 13-19 (1990).
Nicolaou, et al. "A Convergent Strategy Towards Taxol, A Facile Enantioselective Entry Into a Fully Functionalized Ring A System", J. Chem. Soc. Chem. Comm., 1117-1118 (1992).
Nicolaou, et al. "Synthesis of A Fully Functionalized Co Ring System of Taxol", J. Chem. Soc. Chem. Comm., 1118-1119 (1992).
Nicolaon, et al., "Synthesis of ABC Taxoid Ring Systems via a Convergent Strategy", J. Chem. Soc. Chem. Comm., 1024-1026 (1993).
Nicolaou, et al., "Design Synthesis and Biological Activity of Protaxols", Nature, 364, 464-467 (1993).
Ojima, et al., "New and Efficient Approaches to the Semisynthesis of Taxol and its C-13 Side Chain Analogs by Means of .beta.-Lactam Synthon Method", Tetrahedron: 48, 6985-7012 (1992).
Ojima et al. "A Highly Efficient Route to Taxotere by the .beta.-Lactam Synthon Method", Tet. Letters: 34, 4149-4152 (1993).
Taylor et al., J. of Labelled Compounds and Radio pharm., (Jun. 1993) 33(6), 501-15, (also CA 119:203655).
CA 75:6129 (Wani et al., JACS, (1971), 93(9), 2325-7.
CA 119:28392 (Ahond et al. WO 9302064A1, (1993) 930204.
CA 116:129302 (Ettovati et al.) Tetrahedron (1991), 47(47), 9823-38.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Transformations of taxol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transformations of taxol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transformations of taxol will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2017404

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.