WO2001053299A1 - Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof - Google Patents
Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof Download PDFInfo
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- WO2001053299A1 WO2001053299A1 PCT/US2001/001877 US0101877W WO0153299A1 WO 2001053299 A1 WO2001053299 A1 WO 2001053299A1 US 0101877 W US0101877 W US 0101877W WO 0153299 A1 WO0153299 A1 WO 0153299A1
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- 0 Cc(c(*)c(*)c1c2C(*)CN(C(*)[C@](C(*)c3c4c(O*)c(*)c(*)c3*)N(C)[C@]4S)C1C*)c2O* Chemical compound Cc(c(*)c(*)c1c2C(*)CN(C(*)[C@](C(*)c3c4c(O*)c(*)c(*)c3*)N(C)[C@]4S)C1C*)c2O* 0.000 description 5
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/04—Ortho-condensed systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/22—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the nitrogen-containing ring
- C07D217/24—Oxygen atoms
Definitions
- the disclosed invention relates to novel compounds of the saframycin-ecteinascidin series having cytotoxic properties and to schemes for the total synthesis of such compounds.
- ET 743 was previously known, the total synthesis of ET 743 was first accomplished by Corey in 1996 and, prior to this invention, was the only total synthesis of an ecteinascidin.
- saframycin B, saframycin A (13,14), saframycin S (15), ecteinascidin 729 (Et 729) (16), Et 743 and Phthalascidin (3) all posses cytotoxic antitumor and antibiotic characteristics. It is also known that saframycin S, saframycin B, saframycin A, Et 729, Et 743 (17), and phthalascidin (3) all possess a two tetrahydroisoquinoline aromatic carbon nitrogen framework. Saframycins and ecteinascidins have been shown to interact with DNA. Interactions are believed to occur between DNA and the tetrahydroisoquinoline aromatic carbon nitrogen framework. (2,18)
- the subject invention provides compounds of the saframycin- ecteinascidin series with cytotoxic properties having the following general formula, their uses and synthesis:
- R x and R taxi is H, a C : to C 4 alkyl group, or an acyl group;
- R 2 is an ether, ester, amide, a phthalimide group, a substituted phthalimide group or is covalently bound to R 6 ;
- R 5 is H, halogen, OH, an ether group, an acyl group, or an amide group;
- R 8 and R 9 are independently H, CH 3 , 0CH 3 , OC 2 H 5 ,
- FIG 1 shows the structures of Saframycin B and Ecteinascidin 743.
- Figure 2 is a Table showing the cytotoxicity, antimetabolism and antimicrobial activity of ET 743.
- Figure 3 shows the mechanism for the catalytic activation of ET 743 and alkylation of 6GN2.
- FIGS 4A, 4B and 4C show the retrosynthesis analysis of ET 743 and Saframycin B.
- Figures 5A- and 5B show the enatioselective synthesis of amino acid for the synthesis strategy A of Saframycin B.
- Figure 6 shows the enatioselective synthesis of tertahydroisoquinoline, which is used as a subunit in the foregoing synthesis.
- Figures ?A and 7B show the coupling strategy for the synthesis strategy A of Saframycin B.
- Figures 8A and 8B l show the modified synthesis of amino acid for synthesis strategy B of Saframycin B.
- show the synthesis of the pentasubstituted aromatic system and the tertahydroisoquinoline of ET 743, i.e. the left part of ET 743.
- Figure 10A shows the coupling steps for the synthesis strategy B for Saframycin B.
- Figure 10B shows the cyclization for the synthesis strategy B of Saframycin B.
- Figure 11 shows the final steps for the total synthesis of ' Saframycin B.
- Figure 12 shows the synthesis for ET 743.
- Figure 13 shows the coupling and the cyclization steps in synthesis for ET 743.
- Figure 14 shows the ET 743 series cyclization analogs.
- Figure 15 shows the plan for the total synthesis of ET 743.
- R 12 is H, a ⁇ to C 4 alkyl group, or an acyl group; and wherein the chiral center marked * has the R or the configuration.
- the compound has the formula:
- R ⁇ r R 2 , R 3 , R 4 , R 5 , R ⁇ , R 7 , R e , and R 9 are as defined above
- the compound has the formula:
- Ri is H
- R 3 0
- R 4 is benzene 3
- R 5 is OCH 3
- R 6 0
- R 7 is H.
- R ⁇ is H
- R 3 0
- R 4 is H
- R 5 is OCH 3
- R 7 is H.
- Ri is H
- R 3 0
- R 4 is H
- R 5 is H
- R 6 0
- R 7 is H.
- R 1 is H
- R 3 0
- R 4 is H
- R 5 is halogen
- Rg 0
- R 7 is H.
- R 2 is 0C(0)H
- R 2 is H
- R 2 is OH
- R 2 is -0-benzene
- R 2 is OCOCH 3
- R 2 is -O-t-butyldimethylsilyl
- R 2 is -0- Pivaloyl.
- the compound has the formula
- R l r R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 are as defined above.
- R is H
- R 3 0
- R 4 is CH 3
- R 5 is 0CH 3
- R 6 0
- R 7 is H.
- R is H
- R 3 0
- R 4 is benzene 3
- P ⁇ is 0CH 3
- Rg 0
- R 7 is H.
- R x is H
- R 3 0
- R 4 is H
- R 5 is 0CH 3
- R 6 0
- R 7 is H.
- R 2 is 0C(0)H
- R 2 is H
- R 2 is OH
- R 2 is -O-benzene
- R 2 is OCOCH 3
- R 2 is -O-t-butyldimethylsilyl
- R 2 is -0- Pivaloyl .
- the subject invention also provides compounds having the 0 formula:
- the compound has the formula:
- R l r R 2 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 are as def ined above
- the compound has the formula:
- R l r R 2 , R 4 , R 5 , R 6 , and R 7 are as defined above.
- R ⁇ is CH 3
- R 4 is CH 3
- R 5 is OCH 3
- R 7 is H.
- R ⁇ is H
- R 4 is CH 3
- R 5 is OCH 3
- R 7 is H.
- Ri is H
- R 4 is benzene 3
- R 5 is 0CH 3
- R 6 0
- R 7 is H.
- Ri is H
- Rute is H
- R 5 is 0CH 3
- R 6 0
- R 7 is H.
- Ri is H
- R 4 is H
- R 5 is H
- R 1 is H
- R 4 is H
- R 5 is halogen
- R 7 is H .
- R 2 is OC (0) H
- R 2 is H
- R 2 is OH
- R 2 is -O-benzene
- R 2 is 0COCH 3
- R 2 is -O- t-butyldimethylsilyl
- R 2 is -0- Pivaloyl .
- the compound has the formula :
- R l R 2 , R 4 , R 5 , R 6 , and R 7 are as defined above.
- R x is CH 3
- R 4 is CH 3
- R 5 is 0CH 3
- R 6 0
- R 7 is H.
- R ⁇ is H
- R 4 is CH 3
- R 5 is 0CH 3
- R 6 0
- R 7 is H.
- Ri is H
- R 4 is benzene 3
- R 5 is 0CH 3
- R 6 0
- R 7 is H
- R x is H
- R 4 is H
- R 5 is OCH 3
- R 7 is H.
- R j. is H
- R 4 is H
- R 5 is H
- R 6 0
- R 7 is H.
- R 1 is H
- R 4 is H
- R 5 is halogen
- R 7 is H.
- R 1 is H
- R 4 is CH 3
- R 5 is CH 3
- R 6 0
- R 7 is H (Compound 110) .
- R 2 is 0C(0)H
- R 2 is H
- R 2 is OH
- R 2 is -O-benzene
- R 2 is OCOCH 3
- R 2 is -0-t-butyldimethylsilyl
- R 2 is -0- Pivaloyl .
- the subject invention also provides compounds having the following general formula which are used in the synthesis of compounds within the saframycin-ecteinascidin series:
- R 4 is H, a C x to C 4 alkyl group, or an acyl group
- R 5 is H, halogen, OH, an ether group, an acyl group, a sulfide group or an amide group
- R is CH 3 , OCH 3 , OC 2 H 5 , SCH 3 , or SC 2 H 5
- R 12 is H, a C 1 to C 4 alkyl group, or an acyl group.
- the compound has the formula:
- R 4 and R 5 are defined as above, In a preferred embodiment of the immediately preceding formula, R 4 is CH 3 and R 5 is CH 3 (compound 1) .
- R 4 is i Benzene and R 5 is H (compound 3).
- the subject invention also provides compounds having the following general formula which are used in the synthesis of compounds within the saframycin-ecteinascidin series :
- SC 2 H 5 , or R 8 and R 9 are joined together to form a five or six membered ring; wherein R 10 is CH 3 , 0CH 3 , OC 2 H 5 , SCH 3 , or SC 2 H 5 .
- R l f R 3 and R 10 are defined as above
- the subject invention also provides compounds having the following general formula which are used in the synthesis of compounds within the saframycin-ecteinascidin series :
- SC 2 H 5 , or R 8 and R 9 are joined together to form a five or six membered ring; wherein R 10 is CH 3 , OCH 3 , OC 2 H 5 , SCH 3 , or SC 2 H 5 .
- the compound has the formula :
- the subject invention also provides a method of producing the compounds within the saframycin-ecteinascidin series such as compound 1, which method comprises reacting a compound having the formula
- the reaction is performed in the presence of N, N-bis (2-oxo-3- oxazolidinyl) phosphinic chloride .
- the reaction is performed in the presence of Dess-Martin periodinate. In this embodiment, the reaction is further performed in the presence of CH 2 C1 2 .
- This invention also provides a method of producing the compound 2 above, which comprises reacting compound 1 above with camphor sulfonic acid (CSA) in the presence of toluene.
- CSA camphor sulfonic acid
- This invention also provides a method of producing the compound 1 above, which comprises reacting compound 2 above with H 2 , 10%Pd/C, Ethanol-ascetic acid in the presence hydrochloric acid.
- R 10 and R u are independently CH 3 , 0CH 3 , OC 2 H 5 , SCH 3 , or
- R l r R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are defined as in the preceding formula.
- the compound has the formula:
- R l R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 are defined as in the formula above .
- Ri is H
- R 2 is OH
- R 3 is H
- R 4 is H
- R 5 is H
- R j 0
- R 7 is H (Compound 113) .
- R x is CH 3
- R 2 is OH
- R 3 is H
- R 4 is CH 3
- Rg is OCH 3
- R g is H
- R 7 is H
- R x is H
- R 2 is OH
- R 3 is H
- R 4 is CH 3
- Rg is OCH 3
- R 1 is H
- R 2 and R 6 are joined as an ester bond
- R 3 is H
- R 4 is CH 3
- R 5 is 0CH 3
- R 7 is H (Compound 105) .
- R x is CH 3 , R 2 and Rg are joined as an ester bond, g is H, R, is CH 3 , R 5 is OCH 3 , and R 7 is H (Compound 106) .
- the compound has the formula:
- R l r R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 are defined as in the preceding formula.
- R x is H
- R 2 is OH
- R 3 is OH
- R 4 is CH 3
- R 5 is OCH 3
- R 7 is H
- R : is H
- R 2 is OH
- R 3 is H
- R « is CH 3
- Rs is 0CH 3
- Rg 0
- R, is H (Compound 111) .
- R x is H
- R 2 is OH
- R 3 0
- R 4 is CH 3
- R 5 is OCH 3
- R 6 0
- R 7 is H
- the subject invention also provides for a method of producing compound 3, comprising reacting a compound having the formula A with a compound having the formula C.
- the reaction is performed in the presence of N, N-bis (2-oxo-3- oxazolidinyl) phosphinic chloride.
- reaction is performed in the presence of Dess-Martin periodinate.
- reaction is further performed in the presence of CH 2 C1 2 .
- reaction is performed with H 2 , 10%Pd/C, Ethanol-ascetic acid in the presence hydrochloric acid.
- This invention also provides a method of producing the compound 3 above, which comprises reacting compound 2 above with H 2 , 10%Pd/C, Ethanol-ascetic acid in the presence hydrochloric acid.
- This invention also provides a method of producing the compound 2 above, which comprises reacting compound 3 above with camphor sulfonic acid (CSA) in the presence of toluene.
- This invention also provides a pharmaceutical composition for treating a tumor in a subject, which comprises a pharmaceutically effective amount of compound 1 above or compound 2 above or compound 3 above.
- CSA camphor sulfonic acid
- This invention also provides a method of inhibiting proliferation of tumor cells which comprises contacting the cells under suitable conditions with an effective amount of compound 1 above or compound 2 above or compound 3 above .
- This invention also provides a method of treating a patient having a tumor characterized by proliferation of neoplastic cells which comprises administering to the patient an effective amount of compound 1 above or compound 2 above or compound 3 above.
- the effective amount may be from about 0.5 mg to about 5 mg per day, preferably from about 1 mg to about 3 mg per day, and most preferably about 2 mg per day.
- 4-Oxy-saframycin can be viewed as more closely related to compounds of the saframycin series (Saframycin B, A , and S) than to ET.
- the aromatic rings in III can be regarded as modified hydroquinone versions of the quinone moieties of saframycin, with the important proviso that III also contains a 4-oxo group. This function, in the context of appropriate aromatic domains, is potentially valuable for synthesizing ET and a new range of analogs thereof.
- Example 1 shows that a suitably directed p-Claisen rearrangement followed by Sharpless A.E. (6a) can be used to generate a significantly functionalized tyrosine (see compound 16)
- Example 1 uses the building blocks of Example 1 to reach the saframycin-ecteinascidin series.
- the pharmacological, antitumor, anti-tumorigenic, cytotoxic and cellular anti-proliferative activity of the compounds disclosed here both in vivo and in vitro can be determined by using published test procedures.
- In vivo assays to determine a compound's antitumor capabilities are typically performed in rodents or other species. Tumor growth is determined by the growth of tumors from transplanted transformed cells or tumor xenographs into or onto the animal.
- In vitro assays to determine a compound's antitumor capabilities can be performed using a soft agar cloning assay to determine the in vitro effects of the disclosed compounds against primary tumor specimens taken directly from patients .
- Anti-proliferative efficacy and cytotoxicity typically can be determined by absorbance of viable cells and the use of a reference wavelength to serve as an index for the viable cells . (See, eg., 3)
- Kishi K, Yazawa K, Takahashi K, Mikami Y, Arai T Structure-activity relationships of saframycins, J Antibiot . (Tokyo) , Vol. 37, No. 8, August 1984 pages 847- 852
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Abstract
Description
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU31003/01A AU783562B2 (en) | 2000-01-19 | 2001-01-19 | Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof |
JP2001553773A JP2003520801A (en) | 2000-01-19 | 2001-01-19 | Saframycin-ectineacidin family of compounds, their use and synthesis |
EP01903151A EP1254140A4 (en) | 2000-01-19 | 2001-01-19 | Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof |
CA002397597A CA2397597A1 (en) | 2000-01-19 | 2001-01-19 | Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof |
Applications Claiming Priority (2)
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US17707100P | 2000-01-19 | 2000-01-19 | |
US60/177,071 | 2000-01-19 |
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WO2001053299A1 true WO2001053299A1 (en) | 2001-07-26 |
WO2001053299A9 WO2001053299A9 (en) | 2002-10-24 |
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PCT/US2001/001877 WO2001053299A1 (en) | 2000-01-19 | 2001-01-19 | Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof |
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US (2) | US6686470B2 (en) |
EP (1) | EP1254140A4 (en) |
JP (1) | JP2003520801A (en) |
AU (1) | AU783562B2 (en) |
CA (1) | CA2397597A1 (en) |
WO (1) | WO2001053299A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002040477A2 (en) * | 2000-11-03 | 2002-05-23 | President And Fellows Of Harvard College | Saframycins, analogues and uses thereof |
WO2003064432A1 (en) * | 2002-01-29 | 2003-08-07 | Japan Science And Technology Agency | Process for total synthesis of ecteinascidins and intermediates therefor |
US7183054B2 (en) | 2003-06-03 | 2007-02-27 | President And Fellows Of Harvard College | Assay for identifying biological targets of polynucleotide-binding compounds |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TR200003470T2 (en) * | 1998-05-11 | 2001-06-21 | Pharama Mar, S.A. | Ecteinascidin 743 Metabolites |
AR035842A1 (en) * | 1999-05-14 | 2004-07-21 | Pharma Mar Sa | METHOD OF HEMISINTESIS FOR THE FORMATION OF INTERMEDIARY AND DERIVATIVE COMPOUNDS AND OF STRUCTURES RELATED TO ECTEINASCIDINE AND TETRAHYDROISOCHINOLINPHENOLS AND INTERMEDIARY APPLICATION COMPOUNDS IN SUCH METHOD |
US6686470B2 (en) | 2000-01-19 | 2004-02-03 | The Trustees Of Columbia University In The City Of New York | Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof |
US7919493B2 (en) * | 2000-04-12 | 2011-04-05 | Pharma Mar, S.A. | Anititumoral ecteinascidin derivatives |
DE60111845T2 (en) * | 2000-04-12 | 2006-04-27 | Pharma Mar, S.A., Tres Cantos | ECTEINASCIDINE DERIVATIVES WITH ANTICIPATING EFFECT |
US7420051B2 (en) * | 2000-05-15 | 2008-09-02 | Pharma Mar, S.A. | Synthetic process for the manufacture of an ecteinaschidin compound |
MXPA02011319A (en) * | 2000-05-15 | 2003-06-06 | Pharma Mar Sa | Antitumoral analogs of et 743. |
GB0117402D0 (en) * | 2001-07-17 | 2001-09-05 | Pharma Mar Sa | New antitumoral derivatives of et-743 |
GB0119243D0 (en) * | 2001-08-07 | 2001-10-03 | Pharma Mar Sa | Antitumoral analogs of ET-743 |
GB0202544D0 (en) * | 2002-02-04 | 2002-03-20 | Pharma Mar Sa | The synthesis of naturally occuring ecteinascidins and related compounds |
WO2006083417A2 (en) * | 2004-12-20 | 2006-08-10 | The Trustees Of Columbia University In The City Of New York | Processes of making sesquiterpenoid tashironin, its analogs and their uses |
WO2006079112A2 (en) * | 2005-01-18 | 2006-07-27 | The Trustees Of Columbia University In The City Of New York | Enantioselective synthesis of merrilactone a and its analogs |
US20090325971A1 (en) * | 2005-03-02 | 2009-12-31 | The Trustees Of Columbia University In The City Of New York | Pentacyclic Alkaloid Compounds and Methods of Use Thereof |
WO2007087220A2 (en) * | 2006-01-25 | 2007-08-02 | The Trustees Of Columbia University In The City Of New York | The total synthesis of ecteinascidin 743 and derivatives thereof |
CA2724325A1 (en) * | 2008-05-16 | 2009-11-19 | Pharma Mar, S.A. | Combination therapy with an antitumor alkaloid |
LT2786753T (en) | 2010-11-12 | 2019-04-10 | Pharma Mar S.A. | Combination therapy with an antitumor antibiotic |
JOP20190254A1 (en) | 2017-04-27 | 2019-10-27 | Pharma Mar Sa | Antitumoral compounds |
US10526334B2 (en) | 2017-07-19 | 2020-01-07 | California Institute Of Technology | Methods for preparing bis-tetrahydroisoquinoline-containing compounds |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5721362A (en) * | 1996-09-18 | 1998-02-24 | President And Fellows Of Harvard College | Process for producing ecteinascidin compounds |
JP4443043B2 (en) * | 1998-04-06 | 2010-03-31 | ザ ボード オブ トラスティーズ オブ ザ ユニバーシテイ オブ イリノイ | Semi-synthetic etainacidin |
US6124292A (en) * | 1998-09-30 | 2000-09-26 | President And Fellows Of Harvard College | Synthetic analogs of ecteinascidin-743 |
US6686470B2 (en) | 2000-01-19 | 2004-02-03 | The Trustees Of Columbia University In The City Of New York | Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof |
WO2002040477A2 (en) * | 2000-11-03 | 2002-05-23 | President And Fellows Of Harvard College | Saframycins, analogues and uses thereof |
-
2001
- 2001-01-19 US US09/765,515 patent/US6686470B2/en not_active Expired - Fee Related
- 2001-01-19 WO PCT/US2001/001877 patent/WO2001053299A1/en active IP Right Grant
- 2001-01-19 AU AU31003/01A patent/AU783562B2/en not_active Ceased
- 2001-01-19 EP EP01903151A patent/EP1254140A4/en not_active Withdrawn
- 2001-01-19 JP JP2001553773A patent/JP2003520801A/en not_active Withdrawn
- 2001-01-19 CA CA002397597A patent/CA2397597A1/en not_active Abandoned
-
2003
- 2003-12-05 US US10/728,580 patent/US6936714B2/en not_active Expired - Fee Related
Non-Patent Citations (3)
Title |
---|
See also references of EP1254140A4 * |
ZHOU ET AL.: "A novel face specific Mannich closure providing access to the saframycin-ecteinascidin series of piperazine based alkaloids", TETRAHEDRON LETTERS, vol. 41, 27 March 2000 (2000-03-27), pages 2043 - 2046, XP004192671 * |
ZHOU ET AL.: "Synthetic explorations in the saframycin-ecteinascidin series: contruction of major chiral subunits through catalytic asymmetric induction", TETRAHEDRON LETTERS, vol. 41, 27 March 2000 (2000-03-27), pages 2039 - 2042, XP004192670 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002040477A2 (en) * | 2000-11-03 | 2002-05-23 | President And Fellows Of Harvard College | Saframycins, analogues and uses thereof |
WO2002040477A3 (en) * | 2000-11-03 | 2003-02-27 | Harvard College | Saframycins, analogues and uses thereof |
US6809099B2 (en) | 2000-11-03 | 2004-10-26 | President And Fellows Of Harvard College | Saframycins, analogues and uses thereof |
US7122549B2 (en) | 2000-11-03 | 2006-10-17 | President And Fellows Of Harvard College | Saframycins, analogues and uses thereof |
WO2003064432A1 (en) * | 2002-01-29 | 2003-08-07 | Japan Science And Technology Agency | Process for total synthesis of ecteinascidins and intermediates therefor |
EP1471068A1 (en) * | 2002-01-29 | 2004-10-27 | Japan Science and Technology Agency | Process for total synthesis of ecteinascidins and intermediates therefor |
EP1471068A4 (en) * | 2002-01-29 | 2005-04-06 | Japan Science & Tech Agency | Process for total synthesis of ecteinascidins and intermediates therefor |
US7183054B2 (en) | 2003-06-03 | 2007-02-27 | President And Fellows Of Harvard College | Assay for identifying biological targets of polynucleotide-binding compounds |
Also Published As
Publication number | Publication date |
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AU783562B2 (en) | 2005-11-10 |
WO2001053299A9 (en) | 2002-10-24 |
CA2397597A1 (en) | 2001-07-26 |
US20020025962A1 (en) | 2002-02-28 |
EP1254140A1 (en) | 2002-11-06 |
JP2003520801A (en) | 2003-07-08 |
US6686470B2 (en) | 2004-02-03 |
EP1254140A4 (en) | 2003-03-12 |
AU3100301A (en) | 2001-07-31 |
US6936714B2 (en) | 2005-08-30 |
US20040127709A1 (en) | 2004-07-01 |
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