http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CH-510009-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-70 |
| filingDate | 1968-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d03f5e7dd57468ae844f9258833004c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c07956bfb9b6dfa81e050d3c54206784 |
| publicationDate | 1971-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CH-510009-A |
| titleOfInvention | Process for the preparation of new heterocyclic carboxylic acids |
| abstract | Cpds. of formula (I) and their salts with organic and inorganic bases: where R = C1-6 alkyl; X = O or S; Y1, Y2 = H or Me; Z1, Z2 = H, halogen of atomic number is not > 35, C1-2 alkyl or C1-2 alkoxy. Diuretics and saluretics. (V; R=Et, Y1=Y2=Z1=H, Z2=6-methyl) (see Farmdoc 41,217) (20g), paraformaldehyde (4.1g) and HNMe2.HCl (8.2g) in dioxan (125 ml) are stirred 8 hrs. at reflux and evapd. in vacuo. The crude residual (II; Am=NMe2) is treated with anhydr. CH3COONa (21g) and glacial AcOH (200 ml), stirred 2 hrs. at reflux and evapd. in vacuo. The residue is stirred with H2O (100 ml), adjusted to pH2 with conc. HCl, stirred 1 hour at 20 deg. and extracted 3 times with Et2O (150 ml). The Et2O solution is dried (Na2SO4) and evapd. The residue is crystallised from cyclohexane and xylene-cyclohexane (I; R=Et, Z1=Y1=Y2=H, Z2=6-methyl), m.p. 100-2 deg. |
| priorityDate | 1968-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 124.