http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009001148-A3
Outgoing Links
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0b7a5fb1bba0d1e975ecf372ef7fca6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e8c4fa6ef0e34b9fae4f075b57d18fcd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cbc0027af9e9f34a96e6f45e7f8eb005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f9a36328274867f46f8fc1fb9c868703 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0ee7be19e1412eade73bbabb5c5aa1f http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9a8067cd2c198becc0e83b1fea373e40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8c5d3857a3a6c6bc57be8ad5220fdccd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ba87a383a7e7e81755d7c6a80756786 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_701e8e5150316e3138a75b4c02a71b80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_562b9579b28c38de6d330a08b067a410 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0585f508422be3c8629091acecb1a735 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_191769575139155194432eea3357042e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e4ff287a8d0d8e17402efc1e7056b660 |
classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
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classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J41-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J51-00 |
filingDate | 2008-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c69d16a02a93088b34959927c4bd2438 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_663d27395e07dfdc19a4c05d6c9dfd78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fdfade5cd35f47728df2ea5e6c80d57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c93fa03e3884a01ad46cd961cdf22cb8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1138a85215c3af7f7d09925aab47267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62d78da4e5eeb14e5608ad784a194952 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2d5cee1cf527611036f364eff6762aa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d88363791eedfeadae44d2b4c9818589 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2decbd006f0ec156831c9ef06b3ea9d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b0db6f8cf7f2460df999630ef3ee05f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb33405453b67b253b3bf7779b16d0a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5caabdfe8e89b9454b0f12ca6b2e6f53 |
publicationDate | 2009-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | WO-2009001148-A3 |
titleOfInvention | INDUSTRIAL METHOD FOR THE SYNTHESIS OF 17-ACETOXY-11β-[4-(DIMETHYLAMINO)-PHENYL]-21-METHOXY-19-NORPREGNA-4,9-DIEN-3,20-DIONE AND THE KEY INTERMEDIATES OF THE PROCESS |
abstract | The present invention relates to a process for the synthesis of the known 17-acetoxy-11-β-[4-(dimethylamino)-phenyl]-21-methoxy-19-norpregna-4,9-dien-3,20-dione (further on CDB-4124) of formula (I) from 3,3-[1,2-etandiyl-bis(oxy)]-oestr-5(10),9(l l)-dien-17-one of formula (II). Compound CDB-4124 belongs to the group of anti-hormones. The process according to the invention is the following: i) formation of an epoxide on the double bond in position 5(10) of 3,3-[l,2-ethandiyl- bis(oxy)]-oestr-5(10),9(l l)-dien-17-one of formula (II) with hydrogen peroxide; ii) addition of hydrogen cyanide formed in situ on position 17 of the obtained 5,10α- epoxy-3,3-[l,2-ethandiyl-bis(oxy)]-5α-oestr-9(l l)-en-17-one of formula (III); iii) silylation of the hydroxyl group in position 17 of the formed 5,10α-epoxy-3,3-[l,2- ethandiyl-bis(oxy)]-17α-hydroxy-5α-oestr-9(l l)-en-17β-carbonitrile of formula (IV) with trimethyl chlorosilane; iv) reacting the obtained 5,10α-epoxy-3,3-[l,2-ethandiyl-bis(oxy)]-17-[trimethyl-silyl-oxy]-5α-oestr-9(l l)-en-17β-carbonitrile of formula (V) with 4-(dimethylamino)-phenyl magnesium bromide Grignard reagent in the presence of CuCl (Teutsch reaction); v) silylation of the hydroxyl group in position 5 of the formed l lβ-[4-(dimethyl-amino)-phenyl] -3,3 - [1,2-ethandiyl-bis(oxy)] -5 -hydroxy- 17α- [trimethylsilyl-(oxy)] -5 α-oestr-9-en-17β-carbonitrile of formula (VI) with trimethyl chlorosilane; vi) reacting the obtained llβ-[4-(dimethylamino)-phenyl]-3,3-[l,2-ethandiyl-bis(oxy)]-5,17α-bis-[trimethyl-silyl-(oxy)]-5α-oestr-9-en-17β-carbonitrile of formula (VII) with diisobutyl aluminum hydride and after addition of acid to the reaction mixture; vii) methoxy-methylation of the obtained l lβ-[4-(dimethylamino)-phenyl]-3,3-[1,2-ethandiyl-bis(oxy)]-5, 17α-bis-[trimethyl-silyl-(oxy)]-5α-oestr-9-en-17β-carbaldehide of formula (VIII) with methoxy-methyl Grignard reagent formed in situ, while hydrolyzing the trimethylsilyl protective groups; viii) oxidation of the hydroxyl group in position 20 of the obtained 17,20ξ-dihydroxy-11β-[4-(dimemylarnino)-phenyl]-21-methoxy-19-norpregna-4,9-dien-3-one of formula (IX) with dicyclohexyl carbodiimide in the presence of dimethyl sulfoxide and a strong organic acid (Swern oxidation), and in given case after purification by chromatography; ix) acetylation of the hydroxyl group in position 17 of the obtained 11β-[4-(dimethylamino)-phenyl] -17-hydroxy-21-methoxy-19-norpregna-4,9-dien-3,20-dione of formula (X) with acetic anhydride in the presence of perchloric acid, and in given case the obtained 7-acetoxy-11β-[4-(dimethylamino)-phenyl)]-21-methoxy-19-norpregna-4,9-dien-3,20-dione of formula (I) is purified by chromatography. The invention also relates to the new intermediates of formula (VII) and (VIII). |
priorityDate | 2007-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
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