Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy-

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Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- Suppliers list
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Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- manufacturers

  • LT052
  • LT052 pictures
  • 2026-07-14
  • CAS:2543545-44-2
  • Purity: 98.87%
  • Supply Ability: 10g
Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- Basic information
Product Name:Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy-
Synonyms:Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy-;LT052,LT-052;LT052
CAS:2543545-44-2
MF:C22H19N5O4S
MW:449.48
EINECS:
Product Categories:
Mol File:2543545-44-2.mol
Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- Structure
Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- Chemical Properties
Boiling point 759.4±70.0 °C(Predicted)
density 1.49±0.1 g/cm3(Predicted)
storage temp. Store at -20°C
solubility DMSO : 10.42 mg/mL (23.18 mM; Need ultrasonic)
pka6.87±0.20(Predicted)
form Solid
color Yellow to orange
Safety Information
MSDS Information
Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- Usage And Synthesis
UsesLT052 is a highly selective BET BD1 inhibitor with an IC50 of 87.7 nM. LT052 exhibits nanomolar BRD4 BD1 potency and 138-fold selectivity over BRD4 BD2 (IC50=12.130 μM). LT052 has anti-inflammatoryactivity and can be used for acute gout arthritis research[1].
Biological ActivityLT052 is a highly selective BET BD1 inhibitor with an IC50 of 87.7 nM. LT052 exhibits nanomolar BRD4 BD1 potency and 138-fold selectivity over BRD4 BD2 (IC50=12.130 μM). LT052 has anti-inflammatory activity and can be used for acute gout arthritis research[1]. LT052 (1 μM) inhibits NF-κB transcriptional activity in HUVECs cells and inhibit nitric oxide (NO) production (inhibition rate: 101.89%) in RAW264.7 cells. In the evaluation of in vitro inflammatory activity, LT052 maintains comparable or better anti-inflammatory activity than the pan-BET inhibitor (JQ1) compared to the protein weak activity[1].LT052 displays the highinhibitory activity against BRD4(1) (IC50: 87.7±4.9 nM), BRD3(1) (IC50: 246.3±20.2 nM), and BRDT(1) (IC50: 357.1±8.3 nM). LT052 also has inhibitory activities against BRPF1b (IC50: 567.5±16.9 nM). Additionlly, LT052 shows a 238-fold selectivity toward BD1 over BD2 with Kd of 105 nM and >25 μM for BD1 and BD2, respectively[1].LT052 (1 μM; 1 hour) inhibits MSU-induced pyroptosis of THP-1 cells through BRD4/NF-κB/NLRP3 signaling pathways[1]. LT052 (1 mg/kg; intra-articular) suppresses synovial hyperplasia as well as severe neutrophil infiltration, and has a good therapeutic effect on MSU-induced acute gouty arthritis[1].LT052 suppresses pyroptosis of macrophages in rat synovial tissues through regulating BRD4/NF-κB/NLRP3 signaling pathway[1].LT052 has a high clearance rate in the range of 93.517 μL/min/mg proteins to 146.685 μL/min/mg proteins in liver microsomes of multiple species (human, monkey, dog, rat). Overall, LT052 exhibits moderately stable levels of in vitro liver microsomal metabolism[1].
in vivo

LT052 (1 mg/kg; intra-articular) suppresses synovial hyperplasia as well as severe neutrophil infiltration, and has a good therapeutic effect on MSU-induced acute gouty arthritis[1].
LT052 suppresses pyroptosis of macrophages in rat synovial tissues through regulating BRD4/NF-κB/NLRP3 signaling pathway[1].
LT052 has a high clearance rate in the range of 93.517 μL/min/mg proteins to 146.685 μL/min/mg proteins in liver microsomes of multiple species (human, monkey, dog, rat). Overall, LT052 exhibits moderately stable levels of in vitro liver microsomal metabolism[1].

Animal Model:Male Adult Sprague-Dawley rats (250-280 g) (acute gouty arthritis animal models)[1]
Dosage:1 mg/kg
Administration:Intra-articular injection
Result:Restored the joint circumference to normal level.
IC 50BRD4 BD1: 87.7 nM (IC50); BRD3 BD1: 246.3 nM (IC50); BRDT BD1: 357.1 nM (IC50); BRPF1b: 567.5 nM (IC50)
References[1]. Jiang F, et al. Discovery of Benzo[cd]indol-2(1H)-ones and Pyrrolo[4,3,2-de]quinolin-2(1H)-ones as Bromodomain and Extra-Terminal Domain (BET) Inhibitors with Selectivity for the First Bromodomain with Potential High Efficiency against Acute Gouty Arthritis. J Med Chem. 2019 Dec 26;62(24):11080-11107.
Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- Preparation Products And Raw materials
Tag:Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy-(2543545-44-2) Related Product Information
Benzenesulfonamide, N-[1,2-dihydro-1-methyl-4-(4-methyl-1H-imidazol-1-yl)-2-oxopyrrolo[4,3,2-de]quinolin-6-yl]-2-methoxy- 6-pentadecylsalicylic acid AU-15330 NSC228155 dBET1 BI 2536