摘要:
Compounds that stimulate fibroblast growth factor production, and thus cell growth are provided. Also provided are compositions comprising the compounds and methods of using the compounds. The compounds can be used to treat wounds, to expand cell populations, such as hematopoietic cells, or to grow tissue in vitro, among other uses.
摘要:
Drug candidates for inhibition of HIV-I replication can target Src family kinases (SFK), such as Hck, that interact with Nef protein of the virus. Compounds characterized by such inhibitory activity were identified via an assay for kinase activity of an SFK in a Nef:SFK complex. Illustrative of inhibitors identified using the kinase assay are various 2,3-diaminoquinaxolines and furo[2,3-d]pyrimidines. The inventive inhibitors were found to arrest HIV-I viral replication in vitro.
摘要:
Dictyostatin and its analogs show great promise as new anticancer agents. The present invention provides dictyostatin analogs, synthetic intermediates for the synthesis of dictyostatin analogs, and synthetic methods for the synthesis of such analogs and intermediates. Dictyostatin analogs can have the following structure or its enantiomer wherein R1 is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom; R2 is H, a protecting group, an alkyl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; Ra, Rb and Rc are independently an alkyl group or an aryl group; Rd is an alkyl group, an aryl group, an alkoxylalkyl group, —RiSiRaRbRc or a benzyl group, wherein Ri is an alkylene group; Re is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NRgRh, wherein Rg and Rh are independently H, an alkyl group or an aryl group; R3 is (CH2)n where n is and integer in the range of 0 to 5, —CH2CH(CH3), —CH═CH—, —CH═C(CH3), or —C≡C—; R4 is wherein R23a is H, a protecting group, an alkyl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe, R23b is H, a protecting group, an alkyl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe, or R23a and R23b together form a portion of six-membered acetal ring incorporating CRtRu; Rt and Ru are independently H, an alkyl group, an aryl group or an alkoxyaryl group; and R5 is H or OR2b, wherein R2b is H, a protecting group, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; provided that the compound is not dictyostatin 1.
摘要:
Dictyostatin and its analogs show great promise as new anticancer agents. The present invention provides dictyostatin analogs, synthetic intermediates for the synthesis of dictyostatin analogs, and synthetic methods for the synthesis of such analogs and intermediates. Dictyostatin analogs can have the following structure or its enantiomer wherein R1 is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom; R2 is H, a protecting group, an alkyl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; Ra, Rb and Rc are independently an alkyl group or an aryl group; Rd is an alkyl group, an aryl group, an alkoxylalkyl group, —RiSiRaRbRc or a benzyl group, wherein Ri is an alkylene group; Re is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NRgRh, wherein Rg and Rh are independently H, an alkyl group or an aryl group; R3 is (CH2)n where n is and integer in the range of 0 to 5, —CH2CH(CH3)—, —CH═CH—, —CH═C(CH3)—, or —C≡C—; R4 is wherein R23a is H, a protecting group, an alkyl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; R23b is H, a protecting group, an alkyl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe, or R23a and R23b together form a portion of six-membered acetal ring incorporating CRtRu; Rt and Ru are independently H, an alkyl group, an aryl group or an alkoxyaryl group; and R5 is H or OR2b, wherein R2b is H, a protecting group, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; provided that the compound is not dictyostatin 1.
摘要:
Compounds that include a pederin, psymberin or pederin/psymberin chimera scaffold. The pederin scaffold includes a substituent at the C10 and/or C13 position that may include a linker that may be conjugated to a targeting moiety. The psymberin scaffold includes a substituent at the C8 and/or C11 positions that may include a linker that may be conjugated to a targeting moiety. The pederin/psymberin chimera scaffold includes a substituent at the C10 and/or C13 position that may include a linker that may be conjugated to a targeting moiety. The pederin, psymberin or pederin/psymberin chimera scaffold may be modified to include substituents at positions other than the C10 or C13 of pederin, or the C8 and C11 of psymberin.
摘要:
Triarylcyclopropane derivatives in which one or more of the aryl groups includes a hydroxy as a substituted or unsubstituted or alkoxy or side chain substituent. The compounds are useful as antiestrogens and anti-tumor agents.
摘要:
Compounds and compositions are provided that inhibit histone deacylase activity and which expand renal progenitor cell populations and improve kidney function in a damaged kidney. Methods of use of the compounds and compositions are provided.
摘要:
A compound of the following structure: wherein R1 is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom; R2 is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; Ra, Rb and Rc are independently an alkyl group or an aryl group; Rd is an alkyl group, an aryl group, an alkoxylalkyl group, —RiSiRaRbRc or a benzyl group, wherein Ri is an alkylene group; Re is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NRgRh, wherein Rg and Rh are independently H, an alkyl group or an aryl group; R3 is (CH2)n where n is and integer in the range of 0 to 5, —CH2CH(CH3)—, —CH═CH—, —CH═C(CH3)—, or —C≡C—; R4 wherein y1 and y2 are 1 and y3, y4 and y5 are independently 0 or 1, Rk1, Rk2, Rk3, Rk4 and Rk5 are independently H, CH3, or OR2a, and Rs1, Rs2, Rs3, and Rs4 are independently H or CH3, wherein R2a is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; and R5 is H or OR2b, wherein R2b is H, an alkyl group, an aryl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe.
摘要:
The invention concerns separation methods and systems including those comprising a continuous chromatographic simulated moving bed integrated with vapor compression distillation to create a high efficiency separations platform applicable to a broad range of separation functions.
摘要:
Compounds that stimulate fibroblast growth factor production, and thus cell growth are provided. Also provided are compositions comprising the compounds and methods of using the compounds. The compounds can be used to treat wounds, to expand cell populations, such as hematopoietic cells, or to grow tissue in vitro, among other uses.