Abstract:
The present invention relates to novel cyclic sulphates of (poly)glycerol, particularly to the novel compound of 4-(hydroxymethyl)-1,3,2-dioxathiolane-2,2-dioxide. The present invention also relates to the preparation process of the cyclic sulphate compounds, and to the use thereof as an intermediate to prepare green surfactants containing sulphate groups.
Abstract:
Materials and methods for preparing P-chirogenic monophospholanes and bisphospholanes are disclosed. The methods employ stereoselective cyclization to generate the phospholane rings followed by pyramidal inversion to access a variety of P-chirogenic phospholanes. When bound to transition metals such as rhodium, the disclosed P-chirogenic phospholanes may be used as catalysts in asymmetric synthesis of valuable pharmaceutical chemical entities, including pregabalin.
Abstract:
This invention relates to novel corosolic acid analogs of the formula I, wherein R 1 , R 2 , R 3 , R 4 and R 5 are as indicated below in each of said analogs: 1. R 1 = COCH 3 , R 2 = R 3 =R 4 = H, R 5 = COOH or R 1 , =R 3 =R 4 = H, R 2 = COCH 3 ,R 5 = COOH 2. R I = R 2 = COCH 3 , R 3 =R 4 = H, R5= COOH 3. R 1 = COC 5 H 4 N, R 2 = R 3 =R 4 = H, R 5 = COOH 4. R 1 = COCH 2 NH 2 .HC I , R 2 = R 3 =R 4 = H, R 5 = COOH 5. R 1 = COCH 2 (CH 3 )NH 2 .HC I , R 2 = R 3 =R 4 = H, R 5 = COOH 6. R 1 = COCH:CHC 6 H 2 (OCH 3 ) 3 , R 2 = R 3 =R 4 = H, R 5 = COOCH 3 7. R 1 & R 2 = S0 2 , R 3 =R 4 = H, R 5 = COOH 8. R 1 =R 2 =R 3 =R 4 = H, R 5 = CONH 2 9. R I =R 2 =R 3 =R 4 = H, R 5 = CONHC 6 H 5 10. R 1 =R 2 =R 3 =R 4 = H, R 5 = CONHCH 2 CH 2 NH 2 11. R 1 =R 2 =R 3 =R 4 = H, R 5 = CON(CH2CH 2 ) 2 NH 12. R 1 =R 2 =R 3 =R 4 = H, R 5 = CONHCH 2 CH 2 0H 13. R 1 =R 2 =R 3 =R 4 = H, R 5 = COOCH 3 14. R 1 =R 2 = COCH 3 , R 3 =R 4 = H, R 5 = COOCH 3 15. R 1 = R 2 = H, R 3 & R 4 = 0, R 5 = COOCH 3 16. R 1 = R 2 = COCH 3 , R 3 & R 4 = 0, R 5 = COOCH 3 17. R 1 = R 2 = H, R 3 & R 4 = 0, R 5 = COOH 18. R 1 = R 2 = COCH 3 , R 3 & R 4 = 0, R 5 = COOH 19. R 1 & R 2 = S0 2 , R 3 & R 4 = 0, R 5 = COOH 20. R 1 = R 2 = H, R 3 & R 4 = 0, R 5 = CONH 2 21. R 1 = R 2 =R 3 = H, R 4 = OH, R 5 = CONH 2 22. R 1 = R 2 =R 3 = H, R 4 = OH, R 5 = COOCH 3 23. R 1 =R 2 =R 3 =R 4 = H, R 5 = CH 2 0H 24. R 1 =R 2 =R 3 =R 4 = H, R 5 = CHO 25. R 1 =R 2 =R 3 =R 4 = H, R 5 = COOCOC 6 H 2 (OCH 3 ) 3 26. R 1 =R 2 =R 3 = H, R 4 & R 5 = OCO. These compounds exhibit good hypoglycemic and 5-lipoxygenase inhibitory activities. They also inhibit tumour growth. Pharmaceutical compositions containing known adjutants and the title compound are also within the scope of this invention.
Abstract:
A 1,3,2-dioxathiolane oxide derivative of general formula (I) wherein x represents -S(O)- or -S(O)2-; R1 represents hydrogen, alkali metal atom, benzyl or lower alkyl; R2 represents lower alkyl which may be substituted by methylthio, or benzyl; and R?3 and R4¿ may be the same or different from each other and each represents hydrogen, C¿1? to C10 alkyl, guanidyl-substituted lower alkyl, C3 to C6 cycloalkyl, phenyl, benzyl or phenoethyl, or R?3 and R4¿ are combined together to represent alkylene.
Abstract:
The invention relates to methods, compounds, and compositions for delivering 1,3-propanedisulfonic acid (1,3PDS) in a subject, preferably a human subject. The invention encompasses compounds that will yield or generate 1,3PDS, either in vitro or in vivo . The invention also relates to sulfonate ester prodrugs of 1,3PDS as well as Gemini dimmers and oligomers of 1,3PDS for the prevention or treatment of associated diseases and conditions.