| Stereochemistry | ABSOLUTE |
| Molecular Formula | C21H32O2 |
| Molecular Weight | 316.4776 |
| Optical Activity | UNSPECIFIED |
| Defined Stereocenters | 8 / 8 |
| E/Z Centers | 0 |
| Charge | 0 |
SHOW SMILES / InChI
SMILES
C[C@]12CC[C@H]3[C@@H](CC[C@H]4C[C@H](O)CC[C@]34C)[C@@H]1CC[C@@]2(O)C#C
InChI
InChIKey=CKAXZOYFIHQCBN-JRRMKBMNSA-N
InChI=1S/C21H32O2/c1-4-21(23)12-9-18-16-6-5-14-13-15(22)7-10-19(14,2)17(16)8-11-20(18,21)3/h1,14-18,22-23H,5-13H2,2-3H3/t14-,15+,16+,17-,18-,19-,20-,21-/m0/s1
17α-ethynyl-5α-androstane-3α, 17β-diol (HE3235, Apoptone) is an orally bioavailable synthetic analogue of 3β-androstanediol, that is active in rodent models of prostate and breast cancer. HE3235 is a second generation antitumor agent that causes apoptosis. It is an androgen receptor antagonist. HE3235 inhibits the BCL2 gene which translates proteins that prevent apoptosis and stimulates the expression proteins that induce apoptosis. HE3235 also downregulates the gene that codes for the multi-drug resistant protein ABCG2 (BCRP1 – Breast Cancer Resistance Protein1). Apoptone was in Phase I/II trials to treat hormone-refractory prostate cancer. However, the development has been discontinued.
Originator
Approval Year
Targets
| Primary Target | Pharmacology | Condition | Potency |
|---|---|---|---|
PubMed
Patents
ACTIVE MOIETY
