Abstract
AG337 (Thymitaq) is an antitumor compound synthesized by Agouron Pharmaceuticals, Inc., using protein structure-based drug design. AG337 is a hydrochloride salt with a molecular formula of C14H12N4OS-2HCl. This compound was subjected to thermal analyses, Karl Fischer titrimetry, powder X-ray diffractometry, scanning electron microscopy, and FTIR. On the basis of the Karl Fischer and thermogravimetric analysis, it was concluded to be a dihydrate. The differential scanning calorimetric studies revealed, that on heating, AG337 dehydrates and form a metastable form with a melting point of 213 °C followed by crystallization into a stable form at 261 °C. This stable form was finally melted at 312 °C with decomposition. On the basis of the FTIR and HPLC studies, it was concluded that the final exothermic peak at 320 °C was due to sample decomposition. The powder X-ray diffraction studies confirmed the existence of these two polymorphs of AG337. Scanning electron microscopic studies revealed that the crystal habits of both the polymorphs were quite different. FTIR spectra of both the polymorphs showed pronounced difference in the range of 600-1800 cm-1.
| Original language | English |
|---|---|
| Pages (from-to) | 1123-1127 |
| Number of pages | 5 |
| Journal | Journal of Pharmaceutical Sciences |
| Volume | 85 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 1996 |
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All Science Journal Classification (ASJC) codes
- Molecular Medicine
- Chemistry(all)
- Organic Chemistry
- Drug Discovery
- Pharmaceutical Science
- Pharmacology
Cite this
Solid-state characterization of AG337 (Thymitaq), a novel antitumor drug. / Dash, Alekha K.; Tyle, Praveen.
In: Journal of Pharmaceutical Sciences, Vol. 85, No. 10, 10.1996, p. 1123-1127.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Solid-state characterization of AG337 (Thymitaq), a novel antitumor drug
AU - Dash, Alekha K.
AU - Tyle, Praveen
PY - 1996/10
Y1 - 1996/10
N2 - AG337 (Thymitaq) is an antitumor compound synthesized by Agouron Pharmaceuticals, Inc., using protein structure-based drug design. AG337 is a hydrochloride salt with a molecular formula of C14H12N4OS-2HCl. This compound was subjected to thermal analyses, Karl Fischer titrimetry, powder X-ray diffractometry, scanning electron microscopy, and FTIR. On the basis of the Karl Fischer and thermogravimetric analysis, it was concluded to be a dihydrate. The differential scanning calorimetric studies revealed, that on heating, AG337 dehydrates and form a metastable form with a melting point of 213 °C followed by crystallization into a stable form at 261 °C. This stable form was finally melted at 312 °C with decomposition. On the basis of the FTIR and HPLC studies, it was concluded that the final exothermic peak at 320 °C was due to sample decomposition. The powder X-ray diffraction studies confirmed the existence of these two polymorphs of AG337. Scanning electron microscopic studies revealed that the crystal habits of both the polymorphs were quite different. FTIR spectra of both the polymorphs showed pronounced difference in the range of 600-1800 cm-1.
AB - AG337 (Thymitaq) is an antitumor compound synthesized by Agouron Pharmaceuticals, Inc., using protein structure-based drug design. AG337 is a hydrochloride salt with a molecular formula of C14H12N4OS-2HCl. This compound was subjected to thermal analyses, Karl Fischer titrimetry, powder X-ray diffractometry, scanning electron microscopy, and FTIR. On the basis of the Karl Fischer and thermogravimetric analysis, it was concluded to be a dihydrate. The differential scanning calorimetric studies revealed, that on heating, AG337 dehydrates and form a metastable form with a melting point of 213 °C followed by crystallization into a stable form at 261 °C. This stable form was finally melted at 312 °C with decomposition. On the basis of the FTIR and HPLC studies, it was concluded that the final exothermic peak at 320 °C was due to sample decomposition. The powder X-ray diffraction studies confirmed the existence of these two polymorphs of AG337. Scanning electron microscopic studies revealed that the crystal habits of both the polymorphs were quite different. FTIR spectra of both the polymorphs showed pronounced difference in the range of 600-1800 cm-1.
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U2 - 10.1021/js9500969
DO - 10.1021/js9500969
M3 - Article
C2 - 8897283
AN - SCOPUS:0029821245
VL - 85
SP - 1123
EP - 1127
JO - Journal of Pharmaceutical Sciences
JF - Journal of Pharmaceutical Sciences
SN - 0022-3549
IS - 10
ER -