Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-11-29
2005-11-29
Wilson, James O. (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C534S015000, C514S185000, C514S410000, C514S009100
Reexamination Certificate
active
06969765
ABSTRACT:
The invention relates to medicine and concerns a photosensitizer for detecting and curing tumors. The inventive photosensitizer is embodied in the form of a composition containing chlorin in the form of salt and alkali metals. The chlorin is composed of 80-90% of chlorin e6, 5-20 of purpurin 5 and the rest being purpurin 18 -chlorin p6. Said photosensitizer is produced by extracting Spirulina biomass with the aid of acetone. Afterwards said biomass is exposed to acid treatment, neutralization, hydrolysis, extraction of pheophorbidea, dissolution in acetone, addition of a strong base, neutralization and reprecipitation of chlorin e6.
REFERENCES:
patent: 5216012 (1993-06-01), Morgan et al.
patent: 5330741 (1994-07-01), Smith et al.
patent: 2054476 (1994-07-01), None
patent: 2152790 (2002-07-01), None
Abakumova Olga Yurievna
Gradjushko Alexandr Tikhonovich
Ivanov Andrei Valentinovich
Karmenyan Artashes Vacheevich
Kemov Jury Viktorovich
Fedowitz Mathew L.
Nichols G. Peter
Obschestvo s Ogranichennoi Otvetstvennostiju “Rada-Pharma
Wilson James O.
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