- Pyrrole-Type compounds, compositions, and methods for treating cancer or viral diseases
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The present invention relates to novel Pyrrole-Type compounds, compositions comprising Pyrrole-Type compounds, and methods useful for treating or preventing cancer or a neoplastic disorder comprising administering a composition comprising a Pyrrole-Type compound. The compounds, compositions, and methods of the invention are also useful for inhibiting the growth of a cancer cell or neoplastic cell. The present invention also relates to novel Pyrrole-Type compounds, compositions, and methods useful for treating or preventing a viral infection. The compounds, compositions, and methods of the invention are also useful for inhibiting the replication and/or infectivity of a virus.
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- Pyrrole-type compounds, compositions, and methods for treating cancer or viral diseases
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The present invention relates to novel Pyrrole-Type compounds, compositions comprising Pyrrole-Type compounds, and methods useful for treating or preventing cancer or a neoplastic disorder comprising administering a composition comprising a Pyrrole-Type compound. The compounds, compositions, and methods of the invention are also useful for inhibiting the growth of a cancer cell or neoplastic cell. The present invention also relates to novel Pyrrole-Type compounds, compositions, and methods useful for treating or preventing a viral infection. The compounds, compositions, and methods of the invention are also useful for inhibiting the replication and/or infectivity of a virus.
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- Process for the preparation of 2,2'-bipyrrolyl-pyrromethene (prodigiosins) derivatives
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The present invention is related to a process for the preparation of 5-?2H-pyrrol-2-ylidene)methyl!-2,2'-bi-1H-pyrrole compounds and an intermediate compound.
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- Pyrrolydenemethyl-derivatives and process for their preparation
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New and known 5-?(2H-pyrrol-2-ylidene)methyl!-2,2'-bi-1H-pyrrole derivatives, having immunomodulating activity and, represented by the general formula (I) and the pharmaceutically acceptable salts thereof, are disclosed.
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- Total Synthesis of Prodigiosin, Prodigiosene, and Desmethoxyprodigiosin: Diels-Adler Reactions of Heterocyclic Azadienes and Development of an Effective Palladium(II)-Promoted 2,2'-Bipyrrole Coupling Procedure
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The total synthesis of prodigiosin (1), a red pigment first isolated from Serratia marcescens, possessing the characteristic pyrrolylpyrromethene skeleton of a class of naturally occurring polypyrroles exhibiting antimicrobial and cytotoxic properties, is detailed.The approach is based application of an inverse electron demand Diels-Adler reaction of dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate in a 1,2,4,5-tetrazine--->1,2-diazine--->pyrrole strategy for preparation of prodigiosin pyrrole ring B and the subsequent implementation of an effective intramolecular palladium(II)-promoted 2,2'-diaryl coupling for construction of the prodigiosin 2,2'-bipyrrole AB ring system.In situ generated activated ester derivatives of pyrrole-1-carboxylic acid or the use of pyrrole-1-carboxylic acid anhydride proved suitable for the generation of mixed 1,1'-carbonyldipyrrole compounds for use in the palladium(II)-promoted mixed, 2,2'-bipyrrole coupling.Extensions of this approach to the preparation of the naturally occurring parent pyrrolylpyrromethene, prodigiosene (2a), and 2-methyl-3-pentylprodigiosene (2e, desmethoxyprodigiosin) are detailed.A comparison of the in vitro cytotoxic properties of prodigiosin (1), prodigiosene (2a), and 2-methyl-3-pentylprodigiosene (2e) are reported and reveal exceptional cytotoxic potency (3.7*10-4 μg/mL = 3.7*10-10 g/mL) for prodigiosin against 9PS (P388) mouse leukemia which may be attributed to the presence of the prodigiosin C-6 methoxy substituent.
- Boger, Dale L.,Patel, Mona
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p. 1405 - 1415
(2007/10/02)
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- TOTAL SYNTHESIS OF PRODIGIOSIN
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The total synthesis of prodigiosin (1), possessing the characteristic pyrrolylpyrromethene skeleton of a class of naturally-occuring polypyrroles, is detailed.The approach is based on the application of an inverse electron demand Diels-Alder reaction of dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate in a 1,2,4,5-tetrazine -> 1,2-diazine -> pyrrole strategy for preparation of prodigiosin pyrrole ring B and the subsequent implementation of an intramolecular palladium(II)-promoted 2,2'-diaryl (2,2'-bipyrrole) coupling for construction of the prodigiosin 2,2'-bipyrrole AB ring system.
- Boger, Dale L.,Patel, Mona
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p. 2499 - 2502
(2007/10/02)
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