215391-96-1Relevant articles and documents
Identification of novel 2-((1-(benzyl(2-hydroxy-2-phenylethyl)amino)-1-oxo- 3-phenylpropan-2-yl)carbamoyl)benzoic acid analogues as BMP-2 stimulators
Balaramnavar, Vishal M.,Khan, Imran A.,Siddiqui, Jawed Akhtar,Khan, Mohd Parvez,Chakravarti, Bandana,Sharan, Kunal,Swarnkar, Gaurav,Rastogi, Namrata,Siddiqui,Mishra, Durga Prasad,Chattopadhyay, Naibedya,Saxena, Anil K.
, p. 8248 - 8259 (2013/01/15)
The synthesis and SAR studies of 10 new chemical entities (NCEs) that have shown BMP-2 stimulation and osteoblast differentiation are reported. Among these, 2-((1-(benzyl(2-hydroxy-2-phenylethyl)amino)-1-oxo-3-phenylpropan-2-yl) carbamoyl)benzoic acid (11) was the most effective while its analogue 13 also showed good activity in inducing osteoblast BMP-2 production. Compound 11 induced osteoblast differentiation in vitro, and this effect was abrogated by a physiological BMP-2 inhibitor, noggin. It also exhibited dose dependent increase in nascent bone formation (2.16- and 3.12-fold more than the control at 1 and 5 mg/kg dose, respectively) at the fracture site in rats. At the maximum osteogenic concentration, compound 11 significantly inhibited osteoblastic proteosomal activity. This compound was safe, as it had no effect on BMP synthesis in cardiovascular tissue.
Weinreb amide based synthetic equivalents for convenient access to 4-aryl-1,2,3,4-tetrahydroisoquinolines
Kommidi, Harikrishna,Balasubramaniam, Sivaraman,Aidhen, Indrapal Singh
experimental part, p. 3723 - 3729 (2010/07/05)
New synthetic equivalents, N-methoxy-N-methyl-N′-phenylsulfonyl glycinamide and N-methoxy-N-methyl-N′-benzyl-N′-tert-butyloxy carbonyl glycinamide based on WA functionality were developed for the convenient synthesis of 4-aryl-1,2,3,4-tetrahydroisoquinoline framework. Two simple reactions, N-benzylation and addition of arylmagnesium halide on the WA functionality of the former afforded the key intermediate for convenient synthesis of N-phenylsulfonyl protected 4-aryl-1,2,3,4-tetrahydroisoquinoline, through reduction and acid promoted cyclization. With the latter, the addition of arylmagnesium halide on the WA functionality followed by the same protocol afforded the direct synthesis of 4-aryl-1,2,3,4-tetrahydroisoquinolines in good yields. The acid promoted cyclization step enabled concomitant removal of N-Boc protection.
Stereocontrol between remote atom centers in acyclic substrates. Anti addition of hydride to 1,5-, 1,6-, and 1,7-hydroxy ketones
Zhang, Han-Cheng,Harris, Bruce D.,Costanzo, Michael J.,Lawson, Edward C.,Maryanoff, Cynthia A.,Maryanoff, Bruce E.
, p. 7964 - 7981 (2007/10/03)
For conformationally unconstrained, acyclic organic compounds, the control of stereogenic centers at remote positions of a chain, that is, at a distance of four or more atom centers, remains a challenging problem in asymmetric synthesis. We report on our
