NOPR Collection:

A new lipid glycoside from two sinularia species of Andaman and Nicobar Islands^†

Tue, 01 Feb 2000 00:00:00 GMT

Title: A new lipid glycoside from two sinularia species of Andaman and Nicobar Islands^† Authors: Anjaneyulu, V; Rao, P V Subba; Radhika, P; Laatsch, H; Misra, L N Abstract: The more polar fractions of ethyl acetate solubles of Sinularia gravis and Sinularia species yield a new glycolipid and its structure has been deduced as 2-hydroxy-3-(octadecyloxy)-propyl-α--fucopyranoside 1 from its high resolution spectral data. Page(s): 121-124

Two new compounds from Ligularia duciformis

Tue, 01 Feb 2000 00:00:00 GMT

Title: Two new compounds from Ligularia duciformis Authors: Gao, Kun; Jia, Zhong-Jian Abstract: Two new compounds have been isolated from the roots of Ligularia ducifonnis. Their structures have been established by spectroscopic studies and by comparison with closely related compounds. Page(s): 160-161

Studies on fused β-lactams: Synthesis, stereochemistry and antimicrobial activity of some new cepham analogues

Tue, 01 Feb 2000 00:00:00 GMT

Title: Studies on fused β-lactams: Synthesis, stereochemistry and antimicrobial activity of some new cepham analogues Authors: Sharma, S D; Saluja, Aarti; Bhaduri, Susmita Abstract: β-Lactam ring has been conveniently grafted onto 2-phenyl-5,6-dihydro-1,3 -thiazine 1 by annelating it with in situ prepared ketenes to furnish cepham analogues 6-9. A variety of acids such as menthoxy acetic acid 2, butylthioacetic acid 3, chloroacetic acid 4 and benzotriazole acetic acid 5 have been used as mixed sulphonic acid anhydrides for the cycloaddition reaction. All the compounds have been screened for their antibacterial activities. Page(s): 156-159

Oxazoles : Perturbations by methyl groups

Tue, 01 Feb 2000 00:00:00 GMT

Title: Oxazoles : Perturbations by methyl groups Authors: Rao, B Rajeshwar Abstract: The effect of methyl groups in oxazoles has been studied and the perturbations caused on the oxygen and nitrogen atoms have been rationalized. The Hucke! Molecular Orbital (HMO) method has been used to evaluate the π-electron densities of all the molecules studied. Page(s): 154-155

NOPR Collection:

A new lipid glycoside from two sinularia species of Andaman and Nicobar Islands†

Two new compounds from Ligularia duciformis

Studies on fused β-lactams: Synthesis, stereochemistry and antimicrobial activity of some new cepham analogues

Oxazoles : Perturbations by methyl groups

A new lipid glycoside from two sinularia species of Andaman and Nicobar Islands^†