GB1402035A — Cyclopentane derivatives
Assigned to Imperial Chemical Industries Ltd · Expires 1975-08-06 · 51y expired
What this patent protects
1402035 Silylated prostadienoates IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Nov 1973 [7 Dec 1972] 56501/72 Heading C3S [Also in Divisions C2 and A5] Trimethylsilyl 16 - (3 - chlorophenoxy)- 9,11α,15 - tri(trimethylsilyloxy) - 17,18,19,20- tetranor - 5 - cis,13 - trans - 12 - epi - pros…
USPTO Abstract
1402035 Silylated prostadienoates IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Nov 1973 [7 Dec 1972] 56501/72 Heading C3S [Also in Divisions C2 and A5] Trimethylsilyl 16 - (3 - chlorophenoxy)- 9,11α,15 - tri(trimethylsilyloxy) - 17,18,19,20- tetranor - 5 - cis,13 - trans - 12 - epi - prostadienoate, trimethylsilyl 16 - (3 - chlorophenoxy) - 9 - methoxyimino - 11α,15 - di(trimethylsilyloxy) - 17,18,19,20 - tetranor - 5 - cis,13- trans - 12 - epi - prostadienoate, trimethylsilyl 16 - (3 - chlorophenoxy) - 2 - methyl - 9 - methoxyimino - - 11α,15 - di(trimethylsilyloxy)- 17,18,19,20 - tetranot - 5 - cis,13 trans - 12- epi - prostadienoate, trimethylsilyl 9,11α,15- tri(trimethylsilyloxy) - 5 - cis,13 - trans - 12- epi - prostadienoate, 9 - methoxyimino - 11α, 15- di(trimethylsilyloxy) - 5 - cis,13 - trans - 12 - epiprostadienoate, trimethylsilyl 2 - methyl - 9α,- 11α,15 - tri(trimethylsilyloxy) - 5 - cis,13- trans - 12 - epi - prostadienoate, trimethylsilyl 9 - methoxyimino - 2 - methyl - 11α,15 - di- (trimethylsilyloxy) - 5 - cis,13 - trans - 12 - epiprostadienoate, trimethylsilyl 20 - ethyl- 9α,11α,15 - tri(trimethylsilyloxy) - 5 - cis,13- trans - 12 - epi - prostadienoate, trimethysilyl 9 - methoxyimino - 11α,15 - di(trimethylsilyloxy) - 13 - trans - 12 - epi - prostenoate, trimethylsilyl 9α,11α,15 - tri(trimethylsilyloxy)- 13 - trans - 12 - epi - prostenoate, trimethylsilyl 16 - phenyl - 9α,11α,15 - tri(trimethylsilyloxy)- 17,18,19,20 - tetranor - 5 - cis,13 - trans - 12- epi - prostadienoate, 9 - methoxyimino - 16- phenyl - 11α,15 - di(trimethylsilyloxy) - 17,18,- 19, 20 - tetranor - 5 - cis,13 - trans - 12 - epiprostadienoate, trimethylsilyl 16 - (2 - naphthyloxy) - 9α,11α,15 - tri(trimethylsilyloxy)- 17,18,19,20 - tetranor - 5 - cis,13 - trans - 12- epi - prostadienoate and trimethylsilyl 16- (2 - naphthyloxy) - 11α,15 - di(trimethylsilyloxy) - 17,18,19,20 - tetranor - 5 - cis,13 - trans- 12 - epi - prostadienoate are prepared by standard methods.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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