트라이메트렉세이트
트라이메트렉세이트 · CI-898 · NSC249008 · NSC-249008 · Trimetrexate · CI 898 · CI898 · 5-Methyl-6-(3,4,5-trimethoxyanilinomethyl)quinazoline-2,4-diamine

식별자 및 물리적 특성
| CAS No. | 52128-35-5 |
|---|---|
| 분자식 | C19H23N5O3 |
| 평균 분자량 | 369.4 g/mol |
| 단동위원소 질량 | 369.1800896 g/mol |
| SMILES | COc1cc(NCc2ccc3nc(N)nc(N)c3c2C)cc(OC)c1OC |
| InChIKey | NOYPYLRCIDNJJB-UHFFFAOYSA-N |
| PubChem CID | 5583 |
| ChEMBL | CHEMBL119 |
| ChEBI | CHEBI:9737 |
| DTXSID | DTXSID3023714 |
| 현지명 | 트라이메트렉세이트 |
화학 및 물리적 성질
| XLogP | 2.5 |
|---|---|
| 극성 표면적 | 118 |
| 수소 결합 공여자 수 | 3 |
| 수소 결합 수용자 수 | 8 |
| 회전 가능 결합 수 | 6 |
| 무거운 원자 수 | 27 |
| 형식 전하 | 0 |
| 복잡도 | 457 |
| 의약품 | Pharmaceuticals -> Listed in ZINC15 |
| LogP(분배 계수) | 22.55 |
| 용해도 | Tan colored solidsolubility in water: > 50 mg/ml /Trimetrexate D-glucuronate/3.09e-02 g/LWater 1 - 2 (mg/mL)pH 4 Acetate buffer < 1 (mg/mL)pH 9 Acetate buffer < 1 (mg/mL)DMSO : ≥ 61.5 mg/mL (166.48 mM) |
| 녹는점 | 215-217 °C215 - 217 °C |
| Physical Description | Solid |
| Stability/Shelf Life | Bulk: A sample stored at 60 °C for 30 days showed no decomposition (UV, HPLC). Solution: A solution in 5% methanol (0.5 mg/mL) showed no decomposition after 9 days (UV). A solution in 5% dimethylacetamide /pH 4 acetate buffer showed no decomposition after 48 hours(HPLC). |
| Dissociation Constants | 8.0 |
| Other Experimental Properties | Crystals from aqueous acetic acidmp: 215-217 °Cpoorly sol in water. /Trimetrexate monoacetate monohydrate/ |
| 끓는 점 | 647.0±65.0 °C(Predicted) |
| 밀도 | 1.305±0.06 g/cm3(Predicted) |
| 저장 조건 | 2-8°C(protect from light) |
| 물리적 상태 | Solid |
| pKa(산도 계수) | 8.09±0.30(Predicted) |
| 색상 | Light yellow to green yellow |
안전 및 규제
| 기타 안전 정보 | IMAP assessments - 2,4-Quinazolinediamine, 5-methyl-6-[[(3,4,5-trimethoxyphenyl)amino]methyl]-: Environment tier I assessment |
|---|---|
| FDA 요건 | Manufacturers, packers, and distributors of drug and drug products for human use are responsible for complying with the labeling, certification, and usage requirements as prescribed by the Federal Food, Drug, and Cosmetic Act, as amended (secs 201-902, 52 Stat. 1040 et seq., as amended21 U.S.C. 321-392). |
| Hazardous Reactivities and Incompatibilities | Trimetrexate is incompatible with solutions containing chloride ions. Only dextrose 5% in water is recommended for intravenous infusion.Trimetrexate and leucovorin must be administered separately, as a precipitate forms instantly when these 2 drugs added together. |
| Treatment | In the event of overdose, Trimetrexate should be stopped and leucovorin should be administered at a dose of 40 mg/m2 every 6 hours for 3 days. (L1712) |
| 건강 영향 | Antibiotic resistance |
| Hepatotoxicity | When given without leucovorin protection, trimetrexate therapy is associated with a moderate rate of serum enzyme elevations, serum ALT or AST elevations above 5 times ULN in up to 20% of patients. When given with leucovorin, however, trimetrexate has fewer side effects although serum enzyme elevations can still occur. In clinical trials in patients with HIV infection and Pneumocystis jirovecii pneumonia, ALT elevations above 5 times ULN occurred in 1% to 8% of patients, but were usually no more frequent than with standard therapy using trimethoprim with sulfamethoxazole. The elevations were typically transient, without accompanying symptoms or jaundice and resolved or improved despite continuation of therapy. No instances of clinically apparent acute liver injury attributed to trimetrexate have been reported in the literature. In addition, trimetrexate has not been linked to sinusoidal obstruction syndrome or to reactivation of hepatitis B. Nevertheless, trimetrexate probably has hepatotoxic potential, but because it has limited use, is given for short periods of time and is administered with leucovorin, it has not been convincingly linked to cases of clinically apparent liver injury with jaundice. |
| 노출 경로 | Intravenous injection |
| 독성 요약 | In vitro studies have shown that trimetrexate is a competitive inhibitor of dihydrofolate reductase (DHFR) from bacterial, protozoan, and mammalian sources. DHFR catalyzes the reduction of intracellular dihydrofolate to the active coenzyme tetrahydrofolate. Inhibition of DHFR results in the depletion of this coenzyme, leading directly to interference with thymidylate biosynthesis, as well as inhibition of folate-dependent formyltransferases, and indirectly to inhibition of p.r.n. biosynthesis. The end result is disruption of DNA, RNA, and protein synthesis, with consequent cell death. |
용도
개요
Trimetrexate (TMQ) has been approved for the treatment of Pneumocystis carinii in patients with AIDS and also exhibits antiprotozoal activity against Trypanosoma cruzi . The drug is available as a single-ingredient medication, but it can be administered along with folinic acid in much the same way that methotrexate is administered with calcium leucovorin in cancer chemotherapy. Trimetrexate is a derivative of methotrexate.
용도
Trimetrexate is an FDA-approved drug which selectively inhibits Streptococcus mutans through targeting dihydrofolate reductase (DHFR).
일반 설명
The drug is available as a lyophilized powder in 5- or 30-mgvials for IV use. The drug is used to treat colorectal cancer,head and neck cancer as well as NSCLC. The mechanism ofaction of trimetrexate involves folate antagonism and inhibitionof thymidylate synthesis. Trimetrexate does not formintracellular polyglutamate adducts as does methotrexateand other related compounds. Resistance can occur by increasedexpression of the target enzyme, decreased bindingaffinity for the target enzyme, or decreased intracellulardrug transport. Trimetrexate is administered only by the IVroute and distributed throughout the body with extensivebinding to plasma proteins. The major catabolic pathwaysinvolve O-demethylation followed by glucuronide conjugation.The drug interaction and toxicity profiles are similar tothose for methotrexate.