Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2005-04-05
2005-04-05
McKenzie, Thomas C. (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S028540
Reexamination Certificate
active
06875860
ABSTRACT:
This invention provides a method for efficiently purifying 5′-protected thymidines which cannot be efficiently purified by the prior art. Impurities can be separated by obtaining crystals including a carbonyl-containing solvent to provide a highly pure 5′-protected thymidine. Thus, this invention allows 5′-protected thymidines, which cannot be purified in an industrial scale by the prior art, to be easily provided with a high purity in a large scale.
REFERENCES:
patent: 90789 (1983-10-01), None
patent: 58-180500 (1983-10-01), None
patent: 60-152495 (1985-08-01), None
patent: 6-507883 (1994-09-01), None
patent: 11-511480 (1999-10-01), None
patent: 2000-264897 (2000-09-01), None
patent: WO 0039138 (2000-07-01), None
patent: WO 0075154 (2000-12-01), None
Desiraju, Gautam R., Nature 412, 397-400 (2001).*
Schaller, H. et al, JACS, vol. 85, 1963, pp. 3821-3827.*
Prahadeeswaran, D.; Kolappan, S.; Krishnan, R.; Seshadri, T. P., Journal of Inclusion Phenomena and Macrocyclic Chemistry 37(1-4), 281-297 (English) 2000.*
Baur, Werner H. Nova Acta Leopoldina (1999), 79(310, “Can Crystal Structures Be Predicted?”), pp. 47-57, Chemical Abstracts, 131:187376.*
Joachim Ulrich, “Kirk-Othmer Encyclopedia of Chemical Technology”, John Wiley & Sons, 2002.).*
West, Anthony R., Solid State Chemistry and its Applications, Wiley, New York, 1988, pp. 358 & 365.*
S.A. Narang, et al., “[61] Chemical Synthesis of Deoxyoligonucleotides by the Modified Triester Method”, Methods in Enzymology, vol. 65, pp. 610-620, 1980.
Ishibashi Hiroki
Komatsu Hironori
Kouno Toshiyuki
Tanikawa Hiroharu
Tsuchiya Katsutoshi
Burns Doane , Swecker, Mathis LLP
McKenzie Thomas C.
Mitsui Chemicals Inc.
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