http://rdf.ncbi.nlm.nih.gov/pubchem/patent/MX-PA01003729-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8b9036c33bbe3f4ea428655b76200f7c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D471-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-06 |
| filingDate | 1999-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0126171cff1b55955e5b3e67acdf38ca |
| publicationDate | 2002-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | MX-PA01003729-A |
| titleOfInvention | METHOD FOR STABILIZING A WATERPROOF SOLUTION OF DERIVATIVES OF PIRAZOLOACRIDONA. |
| abstract | A method for stabilizing an aqueous solution containing a pyrazoloacridone derivative or a pharmaceutically acceptable salt thereof, which comprises adding an acid to an aqueous solution containing a pyrazoloacridone derivative, represented by the following formula (1) (hereinafter referred to as compound (I): (see formula) in which R1a, R1b, R1c and R1d independently represent hydrogen, a lower alkyl group, - (CH2) pX (where p is an integer from 1 to 6; and X represents a hydroxyl group, a lower alkoxy group or -NR2aR2b, (where R2a and R2b independently represent hydrogen, a lower alkyl group, - (CH2) mY (where m is an integer from 1 to 6 and Y represents a hydroxyl group, a lower alkoxy group or -NR3aR3b (where R3a and R3b independently represent hydrogen or a lower alkyl group)); or R2a, and R2b form a heterocyclic group together with the nitrogen atom adjacent to them)) or รป CH ((CH2) nOH ) 2 (where n is an integer from 1 to 5) or its pharmaceutic salt only acceptable; replace the air in a tightly closed container containing the aqueous solution, with an inert gas; and seal the container; and a tightly closed container containing an aqueous solution containing the compound (1) or a pharmaceutically acceptable salt and an acid; where the air in the tightly closed container is replaced with an inert gas. |
| priorityDate | 1998-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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