Exact Mass: 545.255762

Exact Mass Matches: 545.255762

Found 238 metabolites which its exact mass value is equals to given mass value 545.255762, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

homoharringtonine

4-Methoxy-16,18-dioxa-10-azapentacyclo[11.7.0.0²,⁶.0⁶,¹⁰.0¹⁵,¹⁹]icosa-1(20),4,13,15(19)-tetraen-3-yl 1-methyl 3-hydroxy-3-(4-hydroxy-4-methylpentyl)butanedioic acid

C29H39NO9 (545.2624684)

Omacetaxine_mepesuccinate

(S)-1-((11bS,12S,14aR)-13-methoxy-2,3,5,6,11b,12-hexahydro-1H-[1,3]dioxolo[4,5:4,5]benzo[1,2-d]cyclopenta[b]pyrrolo[1,2-a]azepin-12-yl) 4-methyl 2-hydroxy-2-(4-hydroxy-4-methylpentyl)succinate

C29H39NO9 (545.2624684)

Omacetaxine mepesuccinate is a cephalotaxine-derived alkaloid ester obtained from Cephalotaxus harringtonia; used for the treatment of chronic or accelerated phase chronic myeloid leukaemia. It has a role as an antineoplastic agent, a protein synthesis inhibitor, an apoptosis inducer and an anticoronaviral agent. It is an alkaloid ester, a tertiary alcohol, an organic heteropentacyclic compound and an enol ether. It is functionally related to a cephalotaxine. Omacetaxine mepesuccinate (formerly known as HHT or Homoharringtonine), is a cephalotaxine ester and protein synthesis inhibitor with established clinical activity as a single agent in hematological malignancies. Omacetaxine mepesuccinate is synthesized from cephalotaxine, which is an extract from the leaves of the plant, Cephalotaxus species. In October 2005, omacetaxine mepesuccinate received Orphan Drug designation from the EMEA for the treatment of chronic myeloid leukemia (CML). Then in March 2006, it received Orphan Drug status from the FDA for the treatment of CML. In November 2006, omacetaxine mepesuccinate, for the treatment of CML, was granted Fast Track designation by the FDA. Most recently, in October 2012, omacetaxine mepesuccinate was marketed under the brand name Synribo and FDA approved for patients who are intolerant and/or resistant to two or more tyrosine kinase inhibitors used to treat accelerated or chronic phase CML. Omacetaxine mepesuccinate is a natural product found in Cephalotaxus harringtonia and Cephalotaxus fortunei with data available. Omacetaxine Mepesuccinate is a semisynthetic formulation of the cytotoxic plant alkaloid homoharringtonine isolated from the evergreen tree Cephalotaxus with potential antineoplastic activity. Omacetaxine binds to the 80S ribosome in eukaryotic cells and inhibits protein synthesis by interfering with chain elongation. This agent also induces differentiation and apoptosis in some cancer cell types. Semisynthetic derivative of harringtonine that acts as a protein synthesis inhibitor and induces APOPTOSIS in tumor cells. It is used in the treatment of MYELOID LEUKEMIA, CHRONIC. See also: Omacetaxine (has active moiety). A cephalotaxine-derived alkaloid ester obtained from Cephalotaxus harringtonia; used for the treatment of chronic or accelerated phase chronic myeloid leukaemia. D000970 - Antineoplastic Agents > D000972 - Antineoplastic Agents, Phytogenic > D006248 - Harringtonines C274 - Antineoplastic Agent > C2122 - Cell Differentiating Agent > C1934 - Differentiation Inducer L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents D004791 - Enzyme Inhibitors > D011500 - Protein Synthesis Inhibitors C274 - Antineoplastic Agent > C1931 - Antineoplastic Plant Product C1907 - Drug, Natural Product Homoharringtonine (Omacetaxine mepesuccinate;HHT) is a cytotoxic alkaloid with antitumor properties which acts by inhibiting translation elongation. Homoharringtonine (Omacetaxine mepesuccinate;HHT) is a cytotoxic alkaloid with antitumor properties which acts by inhibiting translation elongation.

homoharringtonine

omacetaxine mepesuccinate

C29H39NO9 (545.2624684)

D000970 - Antineoplastic Agents > D000972 - Antineoplastic Agents, Phytogenic > D006248 - Harringtonines C274 - Antineoplastic Agent > C2122 - Cell Differentiating Agent > C1934 - Differentiation Inducer L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents D004791 - Enzyme Inhibitors > D011500 - Protein Synthesis Inhibitors C274 - Antineoplastic Agent > C1931 - Antineoplastic Plant Product CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 2287 C1907 - Drug, Natural Product relative retention time with respect to 9-anthracene Carboxylic Acid is 0.650 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.645 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.646 Homoharringtonine (Omacetaxine mepesuccinate;HHT) is a cytotoxic alkaloid with antitumor properties which acts by inhibiting translation elongation. Homoharringtonine (Omacetaxine mepesuccinate;HHT) is a cytotoxic alkaloid with antitumor properties which acts by inhibiting translation elongation.

Arg Asn Gln Glu

(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-3-carbamoylpropanamido]-4-carbamoylbutanamido]pentanedioic acid

C20H35N9O9 (545.255762)

Arg Gln Asn Glu

(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-5-carbamimidamidopentanamido]-4-carbamoylbutanamido]-3-carbamoylpropanamido]pentanedioic acid

C20H35N9O9 (545.255762)

Asp Phe His Lys

(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-3-carboxypropanamido]-3-phenylpropanamido]-3-(1H-imidazol-4-yl)propanamido]hexanoic acid