Edotreotide

Edotreotide

Names
IUPAC name 2-[4-[2-[[(2R)-1-[[(4R,7S,10S,13R,16S,19R)-10-(4-aminobutyl)-4-[[(2R,3R)-1,3-dihydroxybutan-2-yl]carbamoyl]-7-[(1R)-1-hydroxyethyl]-16-[(4-hydroxyphenyl)methyl]-13-(1H-indol-3-ylmethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentazacycloicos-19-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-2-oxoethyl]-7,10-bis(carboxymethyl)-1,4,7,10-tetrazacyclododec-1-yl]acetic acid
Identifiers
CAS Number	204318-14-9
ChemSpider	139675
Jmol interactive 3D	Image
PubChem	158782
UNII	U194AS08HZ
InChI InChI=1S/C65H92N14O18S2/c1-39(81)51(36-80)72-64(96)53-38-99-98-37-52(73-60(92)48(28-41-10-4-3-5-11-41)68-54(84)32-76-20-22-77(33-55(85)86)24-26-79(35-57(89)90)27-25-78(23-21-76)34-56(87)88)63(95)70-49(29-42-15-17-44(83)18-16-42)61(93)71-50(30-43-31-67-46-13-7-6-12-45(43)46)62(94)69-47(14-8-9-19-66)59(91)75-58(40(2)82)65(97)74-53/h3-7,10-13,15-18,31,39-40,47-53,58,67,80-83H,8-9,14,19-30,32-38,66H2,1-2H3,(H,68,84)(H,69,94)(H,70,95)(H,71,93)(H,72,96)(H,73,92)(H,74,97)(H,75,91)(H,85,86)(H,87,88)(H,89,90)/t39-,40-,47+,48-,49+,50-,51-,52+,53+,58+/m1/s1 Key: RZHKDBRREKOZEW-AAXZNHDCSA-N InChI=1/C65H92N14O18S2/c1-39(81)51(36-80)72-64(96)53-38-99-98-37-52(73-60(92)48(28-41-10-4-3-5-11-41)68-54(84)32-76-20-22-77(33-55(85)86)24-26-79(35-57(89)90)27-25-78(23-21-76)34-56(87)88)63(95)70-49(29-42-15-17-44(83)18-16-42)61(93)71-50(30-43-31-67-46-13-7-6-12-45(43)46)62(94)69-47(14-8-9-19-66)59(91)75-58(40(2)82)65(97)74-53/h3-7,10-13,15-18,31,39-40,47-53,58,67,80-83H,8-9,14,19-30,32-38,66H2,1-2H3,(H,68,84)(H,69,94)(H,70,95)(H,71,93)(H,72,96)(H,73,92)(H,74,97)(H,75,91)(H,85,86)(H,87,88)(H,89,90)/t39-,40-,47+,48-,49+,50-,51-,52+,53+,58+/m1/s1 Key: RZHKDBRREKOZEW-AAXZNHDCBX
SMILES C[C@H]([C@H]1C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N[C@@H](C(=O)N[C@H](C(=O)N1)CCCCN)Cc2c[nH]c3c2cccc3)Cc4ccc(cc4)O)NC(=O)[C@@H](Cc5ccccc5)NC(=O)CN6CCN(CCN(CCN(CC6)CC(=O)O)CC(=O)O)CC(=O)O)C(=O)N[C@H](CO)[C@@H](C)O)O
Properties
Chemical formula	C65H92N14O18S2
Molar mass	1,421.65 g·mol^−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

⁹⁰Y labelled edotreotide

Edotreotide (USAN, codenamed SMT487, also known as (DOTA⁰-Phe¹-Tyr³)octreotide, or DOTATOC) is a substance which, when bound to various radionuclides, is used in the treatment and diagnosis of certain types of cancer.^[1]

It has been the subject of a trial by the National Cancer Institute to determine its effects in young cancer patients (up to 25 years of age) for its ability to locate malignant cancer cells without harming normal cells. Specific cancers being included in the trial include neuroblastoma, childhood brain tumours and gastrointestinal cancer.^[2]

See also

• DOTA-TATE, a similar compound

References

1. Martindale, The Extra Pharmacopoeia, 30th ed, p1161.
2. Radiolabeled Octreotide in Treating Children With Advanced or Refractory Solid Tumors

• Bushnell, D. L.; O'Dorisio, T. M.; O'Dorisio, M. S.; Menda, Y.; Hicks, R. J.; Van Cutsem, E.; Baulieu, J. -L.; Borson-Chazot, F.; Anthony, L.; Benson, A. B.; Oberg, K.; Grossman, A. B.; Connolly, M.; Bouterfa, H.; Li, Y.; Kacena, K. A.; Lafrance, N.; Pauwels, S. A. (2010). "90Y-Edotreotide for Metastatic Carcinoid Refractory to Octreotide". Journal of Clinical Oncology 28 (10): 1652–1659. doi:10.1200/JCO.2009.22.8585. PMID 20194865.