http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H035475-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f9ba304908c7187b486482f16a0f6158 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-228 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 |
| filingDate | 1989-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9ee13ea69c24055eb578d93245d205e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7c6a9e18782075fe3e744288f00dbc2 |
| publicationDate | 1991-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H035475-A |
| titleOfInvention | Optically active compound and its production |
| abstract | NEW MATERIAL:The optically active compound of formula I [R 1 is 1-12C group selected from (alkoxy)alkyl, cycloalkyl and aralkyl having hetero atom on aromatic ring or alkyl; R 2 is H or easily eliminable protecting group selected from acyl, silyl, aralkyl and alkyloxyalkyl; R 4 is 1-5C lower alkyl; * represents asymmetric carbon atom]. n EXAMPLE: The compound of formula II. n USE: Useful as a production raw material for optically active γ-lactone derivative which is a key intermediate for the synthesis of prostaglandin. n PREPARATION: The objective compound of formula I can be produced by reacting a compound of formula III with a trialkyl orthoacetate of formula IV (R 4 is 1-5C lower alkyl) in the presence of an acid catalyst under heating. The starting compound of formula III can be synthesized from a compound of formula V via several steps. n COPYRIGHT: (C)1991,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6293886-B1 |
| priorityDate | 1989-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.