| Stereochemistry | ABSOLUTE |
| Molecular Formula | C17H21N4O8P |
| Molecular Weight | 440.3444 |
| Optical Activity | UNSPECIFIED |
| Defined Stereocenters | 6 / 6 |
| E/Z Centers | 0 |
| Charge | 0 |
SHOW SMILES / InChI
SMILES
NC1=NC(=O)N(C=C1)[C@@H]2O[C@H](CO[P@]3(=O)OCC[C@H](O3)C4=CC=NC=C4)[C@@H](O)[C@@H]2O
InChI
InChIKey=HOAHIHGOMCBTFW-XCJSNOFESA-N
InChI=1S/C17H21N4O8P/c18-13-3-7-21(17(24)20-13)16-15(23)14(22)12(28-16)9-27-30(25)26-8-4-11(29-30)10-1-5-19-6-2-10/h1-3,5-7,11-12,14-16,22-23H,4,8-9H2,(H2,18,20,24)/t11-,12+,14+,15-,16+,30-/m0/s1
| Molecular Formula | C17H21N4O8P |
| Molecular Weight | 440.3444 |
| 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 |
Cytarabine ocfosfate (commercial name: Starasid) is a prodrug having stearyl group attached to phosphoric acid at 5' position of arabinose moiety of cytosine arabinoside (Ara-C). This drug is given orally. The mode of action is in the inhibition of DNA synthesis after conversion to Ara-CTP as in Ara-C. The drug is metabolized in the liver, producing the intermediate metabolite, C-C3PCA which is converted to Ara-C gradually. This property results in the maintenance of relatively long time the blood Ara-C levels. This was proved to be active clinically against acute leukemia and MDS.
Originator
Approval Year
Sample Use Guides
For adult acute non-lymphatic leukemia: In general, for adults, take 2-6 capsules (100-300mg of the active ingredient anhydride) in 1-3 divided doses a day after meal.
For myelodysplastic syndrome: In general, for adults, take 2-4 capsules (100-200mg of the active ingredient anhydride) in 1-3 divided doses a day after meal, for 2 to 3 weeks every day, then discontinue the medication for 2-3 weeks and repeat this schedule. The dosage may be adjusted according to your disease or symptoms.Strictly follow the instructions.
Route of Administration:
Oral
