Camptothecin analogs as potent inhibitors of topoisomerase I

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

514283, A61K 3144

Patent

active

053648587

ABSTRACT:
A method for synthesizing camptothecin and camptothecin analogs using a novel hydroxyl-containing tricyclic intermediate and the camptothecin analogs produced by the process. The camptothecin analogs are effective inhibitors of topoisomerase.I and show antileukemic and anti-tumor activity.

REFERENCES:
patent: 4031098 (1977-06-01), Sugasawa
patent: 4473692 (1984-09-01), Miyasaka et al.
patent: 4545880 (1985-10-01), Miyasaka et al.
patent: 4604463 (1986-08-01), Miyasaka et al.
patent: 4894456 (1990-01-01), Wall et al.
patent: 4914205 (1990-04-01), Sawada et al.
Cancer Research, (1989), vol. 49, 4385-5489, "DNA Topoisomerase I-Meditated DNA Cleavage and Cytotixicity of Camptothecin Analogues", Hisang et al.
Cancer Research, (1989), vol. 49, 1465-1469, "Structure-Activity Study Of The Actions Of Camptothecin Derivatives On Mammalian Topoisomerase I . . . " Jaxel et al.
The Journal Of Biological Chemistry, (1985, 260, 14873-14878, "Camptothecin Induces Protein-Linked DNA Breaks Via Mammalian DNA Topoisomerase I" Hsiang et al.
J. Med. Chem, (1980), 23, 544-560, "Plant Antitumor Agents. 18..sup.1 Synthesis And Bilogical Activity Of Camptothecin Analogues", Wani et al.
J. Med. Chem, (1986), 29, 1553-1555, "Plant Antitumor Agents 22..sup.1 Isolation Of 11-Hydroxycamptothecin From Camptotheca acuminata Decne . . . " Wall et al.
Journal Of Labelled Compounds And Radiopharmaceuticals, (1981), 18, 319-329, "The Preparation of Tritium And Deuterium-Labelled Camptothecin", Ronman et al.
J. Medicinal Chemistry, (1987), 30, 1774-1779, "Plant Antitumor Agents 25..sup.1 Total Synthesis And Antileukemic Activity Of Ring A . . . ". Wani et al.
J. Medicinal Chemistry, (1990), 33, 972-978, "Plant Antitumor Agents. 29..sup.1 Synthesis And Biological Activity Of Ring D And Ring 3 . . . " Nicholas et al.
J. Org. Chem. (1974), 39, 303-311, "Synthesis Of Some DE And CDE Ring Analogs Of Camptothecin", Plattner et al.
J. Of Am. Chem. Soc. (1972), 94, 8615, "Synthesis Of Some DE And CDE Ring Analogs Of Camptothecin" Plattner et al.
J. Org. Chem., (1974), 39, 3430-3432, "Synthesis Of Biological Evaluation Of DE-AB-Camptothecin", Danishefsky et al.
Govindachari et al, 453-454, "9-Methoxycamptothecin. A New Alkaloid From Mappia foetida Miers".
Huaxue Xuebao, (1984), 42, 42-50, "Mass Spectrometric Study Of Camptothecin And Related Compounds", Yang et al.
Hua Hsueh Hsueh Pao (1975), 33, 71-74, "Studies On The Derivatives Of Camptothecin", Pan et al.
Cancer Treat. Rep., (1987), 71, 341-348, "Action Of 7-Ethylcamptothecin On Tumor Cells And Its Disposition In Mice", Nagata et al.
Mol. Cell. Biol., (1987), vol. 7, 141-148, "Localization Of Specific Topoisomerase I Interactions Within The Transcribed Region Of Active Heat . . . ", Gilmour et al.
Hua Hsueh Hsueh Pao, (1977), 35, 193-200, "Chemical Consistuents Of The Anticancer Plant Camptotheca acuminate Decne. II . . . " Hsu et al.
Chem. Ber., (1978), 111, 3403-3411, "Total Synthesis Of 7-Methoxycamptothecin", Baxmann et al.
Hua Hsueh, (1977), 2, 51-54, "Studies On The Constituents Of Camptotheca acuminate Done. I . . . " Tien et al.
J. Nat. Prod, (1979), 42, 475-477, "Plant Anticancer Agents. X. Isolation Of Camptothecin And 9-Methoxycamptothecin From Ervatamia . . . " Gunasekera et al.
Chung-Kuo Yao Li Hsueh Pai, (1980), 1, 109-112, "Distribution And Excretion Of Camptothecin Suspension And Sodium Camptothecin In Mice", Chen et al.
Heterocycles, (1980), 14, 951-953, "A Facile Synthesis Of (+)-Camptothecin By Enamine Annelation," Kametani et al.
Hua Hsueh Hsueh Pai, (1981), 39, 171-178, "Total Synthesis Of DI-10-Hydroxycamptothecin And DI-10-Methoxycamptothecin", Cai et al.
Heterocycles, (1981), 16, 1713-1717, "A Selective One-Step Introduction Of Hydroxylic Functions At The C-5 And C-7 Positions Of . . . ", Miyasaka et al.
Yaoxue Xuebao, (1984), 19, 63-68, "Studies On Polyphase Liposome Of Camptothecin", PL-CSA:, Luo et al.
Aichi Ika Daigaku Igakkai Zasshi, (1983), 11, 286-293, "Effects On An Antitumor Alkaloid, Camptothecin And Its Derivatives On Cell Growth . . . " Nagata et al.
Biochem. Pharmacol, (1985), 34, 1225-1230, "Action Of Camptothecin And Its Derivatives On Deoxyribonucleic Acid", Fukada.
Proc Annu. Meet. Am Assoc. Cancer Res, (1988), 29, A1080, "Structure-Activity Study Of The Relation Between Topoisomerase I Inhibition And Antitumor . . . ".
Proc. Annu. Meet. Am Assoc. Cancer Res, (1989), 8, A1019, "A Clinical Study Of A Camptothecin Derivative, CPT-11 On Hematological Malignancies", (MTG Abstract).
Proc. Ann. Meet. Am Assoc. Cancer Res, (1989), 30, A2485, "Irreversible Trapping Of The DNA-Topoisomerase I Covalent Complex And Affinity Labeling Of . . . ".
Yao Hsueh Hsueh Pao, (1988), 23, 186-188, "A New Alkaloid-19-Hydroxycamptothecin" Lin et al.
J. Med. Chem, (1989), 32, 715-720, "Modification Of The Hydroxy Lactone Ring Of Camptothecin: Inhibition Of Mammalian Topoisomerase I And . . . ", Mong et al.
Science, (1989), 246, 1046-1048, "DNA Topoisomerase I-Targeted Chemotherapy Of Human Colon Cancer In Xenografts", Giovanella et al.
Proc. Annu. Meet. Am. Assoc. Cancer Res., (1989), A2476, "Structure-Activity Studies Of 20(S)-Captothecin Analogs" (Meeting Abstract).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Camptothecin analogs as potent inhibitors of topoisomerase I does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Camptothecin analogs as potent inhibitors of topoisomerase I, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camptothecin analogs as potent inhibitors of topoisomerase I will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1097934

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.