Table 2 The predicted binding energy of all derivatives with the desired enzyme.

From: Synthesis and structure–activity relationship studies of benzimidazole-thioquinoline derivatives as α-glucosidase inhibitors

Compound

GlideScore

Moiety

Residue

Type of interaction

6b

-7.95

Benzimidazole

Phe157

H-bound

Benzimidazole

Phe157

One bad interaction

Benzimidazole

Lys239

Pi-pi stacking

Benzimidazole

Arg312

H-bound

6c

-5.81

Benzimidazole

Tyr71

Pi-pi stacking

Benzimidazole

Tyr177

Pi-pi stacking

Benzimidazole

Asp214

Three bad interactions

Quinoline

Arg312

Pi-cation

3-Fluorobenzyl

Tyr313

Pi-pi stacking

Benzimidazole

Asp349

H-bound

Benzimidazole

Arg439

Pi-cation

6d

-6.16

Benzimidazole

Tyr71

Pi-pi stacking

3-Fluorobenzyl

Phe157

Pi-pi stacking

Benzimidazole

Phe177

Pi-pi stacking

Benzimidazole

Arg439

Two bad interactions

Benzimidazole

Arg439

Pi-cation

Benzimidazole

Arg439

Pi-cation

6h

-6.55

Benzimidazole

Phe157

Pi-pi stacking

Benzimidazole

Phe157

Pi-pi stacking

Benzimidazole

Phe157

one bad interaction

Benzimidazole

His279

Pi-cation

Quinoline

Phe311

Pi-pi stacking

Quinoline

Arg312

Pi-cation

6i

-6.85

Benzimidazole

Phe157

H-bound

Benzimidazole

Lys239

Pi-pi stacking

Benzimidazole

Arg312

H-bound

4-bromobenzyl

Gln350

Halogen interaction

6j

-8.08

Benzimidazole

Tyr71

Pi-pi stacking

Quinoline

His279

Pi-pi stacking

Quinoline

Phe300

Pi-pi stacking

Quinoline

Phe300

Pi-pi stacking

Benzimidazole

Asp349

H-bound

4-Bromobenzyl

Asp408

Halogen interaction