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Three new organotin (IV) derivatives have been prepared from piperic and phenylthio acetic acids, the former is obtained by hydrolysis of piperine, which is extracted from black pepper. The three complexes {[n-Bu2SnO2C-(CH=CH)2-C7H5O2]2O}2 1, {[n-Bu2SnO2C-CH2-S-C6H4]2O}2 2, and [Ph3SnO2C-(CH=CH)2-C7H5O2]n 3, have been characterized by IR, 1H and 13C NMR spectroscopic techniques. Single crystal diffraction studies were made to determine the structures of the three compounds 1, 2 and 3. Compounds 1 and 2 crystallize in the triclinic system (P\-1), and the respective cell parameters (Å, °) [a = 10.4427 (19), b = 12.881 (2), c= 15.991 (3), a= 76.840 (7), b= 85.130 (6), g= 87.278 (6), and [a = 12.237 (3), b = 12.580 (3), c= 13.507 (3), a= 91.146 (8), b= 104.916 (8), g= 111.307 (8)]. Compound 3 crystallizes in the Monoclinic system (P21/c) with the cell parameters (Å, °) [a= 12.982 (3), b= 11.282 (2), c= 18.528 (4) and b (°) = 108.572 (7)]. The title compounds were evaluated for their biological activities against a range of cancer cell lines (BT-474, MDA-MB-231, AU565), Chronic myeloid leukemia cell line (K562), Lung cancer cell line (H460) and normal cell line 3T3 mouse fibroblast. Especially complexes 1 and 3 (derivatives of the piperic acid), i.e. Pipericcarboxylate triphenyltin [Ph3SnO2C-(CH=CH) 2-C7H5O2]n and {[n-Bu2SnO2C-(CH=CH)2-C7H5O2]2O}2 were most active against all cancer cell lines. These compounds were also active against 3T3 normal cell line, but the IC50 values were high as compared to cancer cell lines., Moroccan Journal of Chemistry, Vol 8, No 1 (2020)

A series of N′-substitutedbenzylidene-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)acetohydrazide derivatives is synthesized and evaluated for antileishmanial activity against Leishmania donovani promastigotes. Compounds 9a and 9i were shown significant antileishmanial when compared with standard sodium stilbogluconate. Antimicrobial study revealed that compound 9b has potent as well as broad spectrum antibacterial activity when compared with ampicillin and compound 9e showed promising antifungal activity when compared with miconazole. Also, none of the synthesized compounds showed cytotoxicity up to tested concentration. Further, docking study against pteridine reductase 1 enzyme of L. donovani showed good binding interactions. ADME properties of synthesized compounds were also analyzed and showed potential to develop as good oral drug candidates.

To compare anterior tension-free approach with posterior preperitoneal repair for complications and early recurrence.A randomized clinical trial.Combined Military Hospital, Muzaffarabad and Rawalpindi, from March 1997 to December 2002.Sixty-seven patients with unilateral recurrent inguinal scrotal and irreducible hernias, were randomized to either anterior tension-free or posterior preperitoneal repair. Patients with primary inguinal hernia, patients with class11/111 obesity (BMI35) and ASA grade 3 and beyond were excluded. For posterior repair, preperitoneal space was entered through a transverse lower abdominal incision placed 3 cms above inguinal ligament. Anterior repair was done by standard Lichtenstein technique. Forty-two patients were operated under spinal anesthesia while 25 patients had general anesthesia. Follow-up was on 7th and 12th postoperative day, at third month, and then yearly for two years. Main outcome measures were postoperative pain and recovery; postoperative complications related to wound, testicles, sensory nerves; and recurrence.Thirty-four patients had anterior tension-free hernioplasty while 33 patients had posterior preperitoneal repair. Mean operating time was longer for anterior preperitoneal repair as compared to posterior repair (70.1min vs. 62.6 min, p = 0.1). Pain score and hospital stay was same for both groups. Return to normal activity was not significantly different being 14.1 days for anterior and 13 days for posterior repair (p= 0.07). Heavy duties were also resumed after statistically non-significant interval, 34.6 days for anterior, and 33 days for posterior repair (p = 0.09). Complication rate in anterior hernioplasty group was 17.6% while in preperitoneal group it was 3% ( p=0.001). There was no recurrence in either group after a mean follow-up of 2 years.Open preperitoneal repair and anterior tension-free repair were equivalent in terms of postoperative pain, recovery and early recurrence rate. Considering fewer testicular complications with posterior repair, it should be the procedure of choice for repair of recurrent groin hernia in men.