Stevioside polymorphic and amorphous forms, methods for...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

Reexamination Certificate

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C536S004100, C536S127000

Reexamination Certificate

active

08030481

ABSTRACT:
Exemplary embodiments of this invention encompass a method for purifying a substantially crude stevioside, methods for preparing polymorphic and amorphous forms of stevioside, and the polymorphic and amorphous forms prepared therefrom.

REFERENCES:
patent: 3723410 (1973-03-01), Persinos
patent: 4082858 (1978-04-01), Morita et al.
patent: 4219571 (1980-08-01), Miyake
patent: 4332830 (1982-06-01), DuBois
patent: 4353889 (1982-10-01), DuBois
patent: 4361697 (1982-11-01), Dobberstein et al.
patent: 4381402 (1983-04-01), DuBois
patent: 4402990 (1983-09-01), DuBois
patent: 4404367 (1983-09-01), DuBois
patent: 4454290 (1984-06-01), DuBois
patent: 4590160 (1986-05-01), Nishihashi et al.
patent: 4599403 (1986-07-01), Kumar
patent: 5112610 (1992-05-01), Kienle
patent: 5530106 (1996-06-01), Navia et al.
patent: PP10562 (1998-08-01), Sys et al.
patent: PP10563 (1998-08-01), Brandle et al.
patent: PP10564 (1998-08-01), Marsolais et al.
patent: 5962678 (1999-10-01), Payzant et al.
patent: 5972120 (1999-10-01), Kutowy et al.
patent: 6255557 (2001-07-01), Brandle
patent: 6331646 (2001-12-01), Schroeder et al.
patent: 6423864 (2002-07-01), Prakash et al.
patent: 6784309 (2004-08-01), Prakash et al.
patent: 6809198 (2004-10-01), El Kabbani et al.
patent: 6998480 (2006-02-01), Catani et al.
patent: 7049435 (2006-05-01), Catani et al.
patent: 2002/0065245 (2002-05-01), Brouwers
patent: 2004/0030124 (2004-02-01), Catani et al.
patent: 2006/0083838 (2006-04-01), Jackson et al.
patent: 2006/0134292 (2006-06-01), Abelyan et al.
patent: 2006/0142555 (2006-06-01), Jonnala et al.
patent: 2007/0082102 (2007-04-01), Magomet et al.
patent: 2007/0082103 (2007-04-01), Magomet et al.
patent: 2007/0116800 (2007-05-01), Prakash et al.
patent: 2007/0116819 (2007-05-01), Prakash et al.
patent: 2007/0116820 (2007-05-01), Prakash et al.
patent: 2007/0116821 (2007-05-01), Prakash et al.
patent: 2007/0116822 (2007-05-01), Prakash et al.
patent: 2007/0116823 (2007-05-01), Prakash et al.
patent: 2007/0116824 (2007-05-01), Prakash et al.
patent: 2007/0116825 (2007-05-01), Prakash et al.
patent: 2007/0116826 (2007-05-01), Prakash et al.
patent: 2007/0116827 (2007-05-01), Prakash et al.
patent: 2007/0116828 (2007-05-01), Prakash et al.
patent: 2007/0116829 (2007-05-01), Prakash et al.
patent: 2007/0116830 (2007-05-01), Prakash et al.
patent: 2007/0116831 (2007-05-01), Prakash et al.
patent: 2007/0116832 (2007-05-01), Prakash et al.
patent: 2007/0116833 (2007-05-01), Prakash et al.
patent: 2007/0116834 (2007-05-01), Prakash et al.
patent: 2007/0116835 (2007-05-01), Prakash et al.
patent: 2007/0116836 (2007-05-01), Prakash et al.
patent: 2007/0116837 (2007-05-01), Prakash et al.
patent: 2007/0116838 (2007-05-01), Prakash et al.
patent: 2007/0116839 (2007-05-01), Prakash et al.
patent: 2007/0116840 (2007-05-01), Prakash et al.
patent: 2007/0116841 (2007-05-01), Prakash et al.
patent: 2007/0128311 (2007-06-01), Prakash et al.
patent: 2007/0134390 (2007-06-01), Prakash et al.
patent: 2007/0134391 (2007-06-01), Prakash et al.
patent: 2010/0137569 (2010-06-01), Prakash et al.
patent: 2278083 (2001-01-01), None
patent: 1407679 (2004-04-01), None
patent: 52062300 (1977-05-01), None
patent: 56121453 (1981-09-01), None
patent: 56121455 (1981-09-01), None
patent: 59071662 (1984-04-01), None
patent: 59120073 (1984-07-01), None
patent: 60027360 (1985-02-01), None
patent: 60037950 (1985-02-01), None
patent: 62091161 (1985-04-01), None
patent: 00/32621 (2000-06-01), None
patent: 00/52019 (2000-09-01), None
patent: WO 2006/038221 (2006-04-01), None
Mullin, J.W. (1961) Chapter 7, “Industrial Crystallization” in Crystallization, Butterworth Inc., p. 158-169.
Luft, J.R., Wolfley, J.R., Saik, D.I., Nagel, R.M., Lauricella, A.M., Smith, J.L., Thayer, M.H., Veatch, C.K., Snell, E.H., Malkowski, M.G., Detitta, G.T. (2007) Efficient optimization of crystallization conditions by manipulation of drop volume ratio and temperature. Protein Science, vol. 16, No. 4, p. 715-722.
Kolá{hacek over (i)}, P. Shen, J.-W., Tsuboi, A., Ishikawa, T. (2002) Solvent selection for pharmaceuticals. Fluid Phase Equilibria, vol. 194-197, p. 771-782.
“2.2 Recrystallization” [online], [retrieved Dec. 10, 2009]. Published on the internet Sep. 12, 2003. Retrieved from the internet <http://siggy.chem.ucla.edu/VOH/136/Recrystallization.pdf>.
Nass, K.K. (1994) Rational Solvent Selection for Cooling Crystallizations. Industrial & Engineering Chemistry Reseach, vol. 33, p. 1580-1584.
Zell et al., Tetrahedron 56(36) 6603-16 (2000).
Shibata et al., Glucosylation of Steviol and Steviol-Glucosides in Extracts fromStevia rebaudianaBertoni, Plant Physiol. 95: 152-156 (1991).
Boggan, B., “Alcohol, Chemistry, and You,” online from ChemCases.Com Edition (retrieved Oct. 18, 2010), available Oct. 3, 2011.
Hancock, B.C. and Parks, M., “What is the True Solubility Advantage for Amorphous Pharmaceuticals,”Pharmaceuticals Researchvol. 17, No. 4, pp. 397-404 (2000).
Luft, J.R., et al., “Efficient optimization of crystallization conditions by manipulation of drop volume and temperature,”Protein Sciencevol. 16, No. 4, pp. 715-722 (2007).
Kojima, S. “ICH Guideline for Residual Solvents (Q3C),” Proceedings of the 4thInternational Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals, online (retrieved Apr. 2, 2010), Brussels, Belgium Jul. 16-18, 1997.
Mullin, J.W., “Industrial Crystallization” inCrystallization, Butterworth Inc., pp. 158-169 (1961).
PTI Process Chemicals, “Denatured Alcohol MSDS,” online (retrieved Oct. 18, 2010), published Apr. 25, 2005.

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