http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-200714580-A

Outgoing Links

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assignee http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_32d53baed267ca5ec2dde6e05e001e49
classificationCPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C401-00
classificationIPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C401-00
filingDate 2005-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_572d661beb9dedc026f3784b0ea09239
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e4e5fe862e8ddb4fc41f0f92d67f279
publicationDate 2007-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber TW-200714580-A
titleOfInvention Process for preparing vitamin D analogs
abstract A method for preparing derivatives of C1-hydroxy-C24-hydroxy-vitamin D is disclosed. Especially the method for preparing calcipotriol and tacalcitol from a starting material of Vitamin D2 is disclosed here. Calcipotriol (compound 1 (a)) and Tacalcitol (compound 1 (b)) can be synthesized through the method of the present invention. Moreover, only nine steps are needed for the synthesis of calcipotriol through the method. Likewise, only ten steps are needed for the synthesis of tacalcitol through the present method. Hence, the complicate steps for the conventional preparing process and the poor yield of the prior art can be improved through the present method.
isCitedBy http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108178742-A
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priorityDate 2005-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date>
type http://data.epo.org/linked-data/def/patent/Publication

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Total number of triples: 20.