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Details

Stereochemistry ABSOLUTE
Molecular Formula C32H48N4O8
Molecular Weight 616.7455
Optical Activity UNSPECIFIED
Defined Stereocenters 6 / 6
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ALVESPIMYCIN

SMILES

CO[C@H]1C[C@H](C)CC2=C(NCCN(C)C)C(=O)C=C(NC(=O)\C(C)=C\C=C[C@H](OC)[C@@H](OC(N)=O)\C(C)=C\[C@H](C)[C@H]1O)C2=O

InChI

InChIKey=KUFRQPKVAWMTJO-LMZWQJSESA-N
InChI=1S/C32H48N4O8/c1-18-14-22-27(34-12-13-36(5)6)24(37)17-23(29(22)39)35-31(40)19(2)10-9-11-25(42-7)30(44-32(33)41)21(4)16-20(3)28(38)26(15-18)43-8/h9-11,16-18,20,25-26,28,30,34,38H,12-15H2,1-8H3,(H2,33,41)(H,35,40)/b11-9-,19-10+,21-16+/t18-,20+,25+,26+,28-,30+/m1/s1

HIDE SMILES / InChI

Molecular Formula C32H48N4O8
Molecular Weight 616.7455
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 6 / 6
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Alvespimycin (17-desmethoxy-17-N,N-dimethylaminoethylamino-geldanamycin) (17-DMAG; NSC 707545) is an inhibitor of the molecular chaperone heat shock protein HSP90. Alvespimycin is a derivative of antineoplastic benzoquinone antibiotic geldanamycin. Alvespimycin binds to HSP90, a chaperone protein that aids in the assembly, maturation and folding of proteins. Subsequently, the function of Hsp90 is inhibited, leading to the degradation and depletion of its client proteins such as kinases and transcription factors involved with cell cycle regulation and signal transduction. Alvespimycin was studied in clinical trials for the treatment of solid tumors and hematologic malignancies however its development was discontinued.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
62.0 nM [EC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
683.36 ng/mL
24 mg/m² 2 times / week multiple, intravenous
ALVESPIMYCIN blood
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
2224 ng × h/mL
24 mg/m² 2 times / week multiple, intravenous
ALVESPIMYCIN blood
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
21.49 h
24 mg/m² 2 times / week multiple, intravenous
ALVESPIMYCIN blood
Homo sapiens

Doses

AEs

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Phase 1 study. Patients with advanced acute myeloid leukemia (AML) received escalating doses of intravenous alvespimycin (8-32 mg/m(2)), twice weekly, for 2 of 3 weeks. Alvespimycin was well tolerated; the maximum-tolerated dose was 24 mg/m(2) twice weekly. Common toxicities included neutropenic fever, fatigue, nausea and diarrhea. Cardiac DLTs occurred at 32 mg/m(2) (elevated troponin and myocardial infarction). Pharmacokinetics revealed linear increases in C(max) and area under the curve (AUC) from 8 to 32 mg/m(2) and minor accumulation upon repeated doses. Recommended phase 2 dose is 24 mg/m(2).
Route of Administration: Intravenous
In Vitro Use Guide
One hepatic cell line (L02) and two HCC cell lines (Huh7 and HepG2) were heated at 42 °C for 0, 0.5 or 4 h with or without 100 nM alvespimycin (17-DMAG).
Substance Class Chemical
Record UNII
001L2FE0M3
Record Status Validated (UNII)
Record Version