NOPR Collection:

A new triterpene from Adiantum lunulatum Burm.

2013-10-10T16:33:43Z

Title: A new triterpene from Adiantum lunulatum Burm. Authors: Mukherjee, K S; Mondal, S; Sohel, SMA; Mukherjee, P; Chatterjee, D; Brahmachari, G Abstract: From the petrol extract of the whole plants of Adiantum lunulatum Burm. (Adiantaceae) a new triterpene characterized as 3β-acetoxy-6α-hydroxy-hop-15, 17(21)-diene 1 has been isolated and its structure elucidated with the help of spectral as well as chemical studies. Page(s): 2665-2667

Synthesis of olivacene, a constituent of Archilejeunea olivacea

2013-10-09T16:43:28Z

Title: Synthesis of olivacene, a constituent of Archilejeunea olivacea Authors: Kamat, Shrivallabh P; D'Souza, Asha M; Paknikar, Shashikumar K Abstract: A simple synthesis of olivacene 1, a naturally occurring sesquiterpenoid hydrocarbon isolated from Archilejeunea olivacea has been described. Page(s): 2662-2664

Anticonvulsant activity of semicarbazone derivatives of Mannich bases

2013-10-11T16:33:28Z

Title: Anticonvulsant activity of semicarbazone derivatives of Mannich bases Authors: Pandeya, S N; Sowmyalakshmi, V; Panda, S S; Pandeya, A; Stables, J P Abstract: A series of semicarbazones of semicarbazide/p-chlorophenyl semicarbazide and Mannich bases of acetophenone/p-chloroacetophenone has been synthesized and their anticonvulsant activity screened against MES and scPTZ test. p-Chlorophenyl semicarbazone of N,N-dimethylaminopropiophenone has been found to be the most active in all these tests. Page(s): 2657-2661

Synthesis and antimicrobial activity of 5-[(4-aroyl) aryloxymethyl]-2-(4- methylphenylamino)-1 ,3,4-thiadiazoles and 5-[(4-aroyl) aryloxy methyl]-4- (4-methylphenyl)-3-mercapto-4H-1,2,4-triazoles

2013-10-09T16:33:43Z

Title: Synthesis and antimicrobial activity of 5-[(4-aroyl) aryloxymethyl]-2-(4- methylphenylamino)-1 ,3,4-thiadiazoles and 5-[(4-aroyl) aryloxy methyl]-4- (4-methylphenyl)-3-mercapto-4H-1,2,4-triazoles Authors: Sudha, B S; Shashikanth, S; Khanum, Shaukath Ara Abstract: Aroyl aryloxyaeetic thiosemicarbazides 4a-d have been synthesized by the reaction of acid hydrazides 3a-d with p-tolyl isothiocyanate. The aroyl aryloxyacetic thiosemicarbazides 4a-d on intramolecular cyclization using cone. H₂SO₄ and 2N NaOH give 1,3,4-thiadiazoles 5a-d and 3-mercapto-4H-1,2,4-triazoles 6a-d, respectively. The structures of the synthesised compounds have been determined by their elemental analysis and spectral data. The synthesized compounds are evaluated for their antibacterial activity. Page(s): 2652-2656