Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Conjugate or complex
Patent
1998-10-21
2000-10-17
Tate, Christopher
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Conjugate or complex
A61K 3578
Patent
active
061327263
ABSTRACT:
In general the present invention relates to a process for the removal of undesireable compounds or residues from an extract which are more polar or less polar than the desired target compound. The preferred embodiment of the present invention is a three step process and is described in detail below. The first step includes contacting a plant material that contains the desired target compound(s) with a solvent, thus producing a crude extract containing a mixture of compounds that includes, in addition to the undesireable residues, the desired target compound(s). The second step involves passing the crude extract through a series of columns containing an absorbent that retards the movement of the undesireable compounds, while allowing the desired compounds to pass. The third and final step involves drying the eluant product to achieve a final product.
REFERENCES:
patent: 3901875 (1975-08-01), Park
patent: 3950266 (1976-04-01), Chang et al.
patent: 4317816 (1982-03-01), Arichi et al.
patent: 4361697 (1982-11-01), Dobberstein et al.
patent: 4610790 (1986-09-01), Reti et al.
patent: 4621137 (1986-11-01), Miyake et al.
patent: 4755504 (1988-07-01), Liu
patent: 4842878 (1989-06-01), Forster et al.
patent: 4946695 (1990-08-01), Forster et al.
patent: 5093123 (1992-03-01), Schutz et al.
patent: 5137878 (1992-08-01), Pang et al.
patent: 5368411 (1994-11-01), Losack
patent: 5484538 (1996-01-01), Woodward
patent: 5585505 (1996-12-01), Mulder et al.
patent: 5660832 (1997-08-01), Steiner et al.
patent: 5843911 (1998-12-01), Nakahara et al.
VWR Scientific Catalog, pp. 652-653 and 655, 1989/90.
Fischer Scientific Catalog, pp. 1192-1197, 1988.
Bailey David T.
Daughenbaugh Randall J.
Gamble William R.
Gertenbach Dennis D.
Hauser, Inc.
O'Rourke Sarah S.
Petersen Steven C.
Tate Christopher
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