A simple procedure for the synthesis of 3-(substituted-sulfanyl)-4-hydroxy-6-substituted-pyran-2-ones
作者:K. S. Para、E. L. Ellsworth、J. V. N. Vara Prasad
DOI:10.1002/jhet.5570310657
日期:1994.11
A series of 3-(substituted sulfanyl)-4-hydroxy-6-substituted-pyran-2-ones were synthesized for Human immunodeficiency virus-1 protease inhibition. These compounds were synthesized in a simple and convergent fashion to allow us a rapid preparation of many structurally diversified analogues. Thus the condensation of trimethylsilyl enol ethers of corresponding ketones, with 2-(S-substituted)propane-1
In order to examine the relationship between the carcinostatic activities of Buntesalts and their chemical behaviours, several Bunte salts, in which some of them weredifunctional, were synthesized and attempted to react with several active methylenecompounds, thiols and amines. In the reactions with thiols and amines, all of the Buntesalts resulted in the formation of the corresponding disulfides or the recovery of the startingmaterials. But in the reaction with active methylene compounds, alkylmercapto orbisalkylmercapto derivatives and cyclic mercaptal were formed respectively.
Neutral halogen bondingdonors (XBDs) containing sp3-hybridized carbon–bromine and sulfoxide moieties were designed and synthesized. They promoted quinolines and imines reduction easily with a relatively low catalyst loading (5 mol %). Their halogen bonding strengths were quantified using 31P NMR spectroscopy and molecular electrostatic potential (MESP) analysis. Single-crystal X-ray analysis unambiguously
Geminal carboxylic acids and esters thereof, pharmaceutical formulations containing them useful in the treatment of bone dysmetabolism
申请人:Dompé S.P.A.
公开号:EP0792878A2
公开(公告)日:1997-09-03
Compounds of formula I:
wherein Ra, Rb, Φ, B and R are as defined in the disclosure, have antagonistic activity on osteoclast hyper-reactivity.
式 I.化合物
其中,Ra、Rb、Φ、B 和 R 如所公开的定义,对破骨细胞高反应性具有拮抗活性。
Singh, Harjit; Batra, Manohar S.; Singh, Paramjit, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 131 - 136