http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2220423-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ba045776bcd32d32e3100da8dfce4e28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-28 |
| filingDate | 1996-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e4770189f50f68627d4401bc7cc03ed http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74c6768b9ec4b0f2da81d83ee6926fca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79bd23a9bd31ee4f3dce98bd7370cb90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3117b8a16213c574e8effb2e3c2111bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6815f010ee7465053e8f58dc1b0640ee http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_add80a0c9542d05b42d8e92bc68363c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ce157a785107b5e5350b489303da588 |
| publicationDate | 1996-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2220423-A1 |
| titleOfInvention | Process for the preparation of substituted 5-hydroxy-oxazolidin-4-one |
| abstract | A process for the synthesis of a compound of general formula (II), wherein: R2 and R3 are each independently hydrogen or C1-C4 alkyl; A is an aromatic or heteroaromatic ring system optionally substituted with one or more substituents selected from: halogen or C1-C10 hydrocarbyl, -O(C1-C10 hydrocarbyl), -S(C1-C10 hydrocarbyl), -SO(C1-C10 hydrocarbyl) or -SO2(C1-C10 hydrocarbyl), cyano, nitro, SCN, SiRc3 (where each Rc is independently C1-C4 alkyl or phenyl), COR7, CR7NOR8, NHOH, ONR7R8, SF5, COOR7, SO2NR7R8, OR9 or NR10R11; and in which any ring nitrogen atom may be quaternised or oxidised; alternatively, any two substituents of the group A may combine to form a fused 5- or 6-membered saturated or partially saturated carbocyclic or heterocyclic ring in which any carbon or quaternised nitrogen atom may be substituted with any of the groups mentioned above for A or in which a ring carbon atom may be oxidised; R7 and R8 are each independently hydrogen or C1-C10 hydrocarbyl; R9 is hydrogen, C1-C10 hydrocarbyl, SO2(C1-C10 hydrocarbyl), CHO, CO(C1-C10 hydrocarbyl), COO(C1-C10 hydrocarbyl) or CONR7R8; R10 and R11 are each independently hydrogen, C1-C10 hydrocarbyl, O(C1-C10 hydrocarbyl), SO2(C1-C10 hydrocarbyl), CHO, CO(C1-C10 hydrocarbyl), COO(C1-C10 hydrocarbyl) or CONR7R8; any of the hydrocarbyl groups within the group A may optionally be substituted with halogen (i.e. chlorine, bromine, fluorine or iodine), hydroxy, SO2NRaRb (where Ra and Rb are independently H or C1-C6 alkyl), cyano, nitro, amino, mono- and dialkylamino in which the alkyl groups have from 1 to 6 or more carbon atoms, acylamino, C1-C6 alkoxy, C1-C6 haloalkoxy, C1-C6 alkylthio, C1C6 alkylsulphinyl, C1-C6 alkylsulphonyl, carboxy, carboxyamide, in which the groups attached to the N atom may be hydrogen or lower hydrocarbyl optionally substituted with halogen; alkoxy carbonyl wherein the alkoxy group may have from 1 to 6 or more carbon atoms, or aryl such as phenyl; the process comprising cyclising a compound of general formula (VII); wherein A, R2 and R3 are as defined for general formula (II), R20 is hydrogen, benzyl or benzyl substituted with up to five substituents selected from halo, C1-C6 alkyl, O(C1C6 alkyl) or nitro and R21 is C1-C8 alkyl, benzyl or benzyl substituted with up to five of the substituents mentioned above for R20. |
| priorityDate | 1995-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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