Abstract: The present invention provides new class of 4?-[4?-(1?,3?-benzothiazole-2?-yl)anilino]podophyllotoxin analogues having the structural formula as follows (4). Where R?H or CH3; R1?H, halogen, CH3 and R2?H, halogen, OCH3. The present invention also provides a process for the preparation of new 4?-[4?-(1?, 3?-benzothiazole-2?-yl)anilino]podophyllotoxin analogues as useful anticancer agents. More particularly, it provides a process for the preparation of 4?-[4?-(1?,3?-benzothiazole-2?-yl)anilino] derivatives of podophyllotoxin. The process for the synthesis of new podophyllotoxin analogues as anticancer agents produces the novel and stereo-selective derivatives of the podophyllotoxin in good yields, where in the key step for the synthesis of these analogues is by direct nucleophilic substitution of C-4?-iodo intermediates.

Abstract: The present invention provides quinazolinone linked pyrrolo[2,1-c][1,4]benzodiazepine hybrid of general formula 5, wherein, R is alkyl or halo group selected from H, Cl, F or CH3 and n=1 to 3 useful for antitumour/anticancer activity. The present invention also provides a process for the preparation of quinazolinone linked pyrrolo[2,1-c][1,4]benzodiazepine hybrid general formula 5.

Abstract: The present invention provides a compound of general formula 5, useful as potential antitumour agents against human cancer cell lines. The present invention further provides a process for the preparation of pyrrolo[2,1-c][1,4]benzodiazepine hybrids of general formula 5 wherein, X1, X2, X3 is selected from H or Cl or CH3, Y is selected from O or NH, Z is selected from C?O or CH2 and n=1 to 4.

Abstract: An electrical contact for use in a printed circuit board edge connector comprises a pair of channel cross-section arms each providing a pair of contact surfaces for engaging a board mated with the contact, the arms being relatively rigid and thus providing high contact pressures.