Abstract: The present invention relates to the synthesis of intermediates which are useful in TTX synthesis and to the preparation thereof.

Abstract: The present invention is aimed at a process for obtaining oreganic acid and derivatives thereof, to the intermediate compounds of this synthesis and to the use of

Abstract: The present invention relates to a process for obtaining cinatrins C1 and C3 and derivatives thereof which comprises the hydroxylation of a compound of formula (III).

Abstract: The present invention is aimed at a process for obtaining zaragozic acid and derivatives thereof, to the intermediate compounds of this synthesis and to the use of these intermediate compounds in the preparation of zaragozic acid.

Abstract: The invention provides highly functionalised spiro-fused lactams of en formula (I) having a cyclohexane moiety with the desired number of protected or un-protected functional groups or carbonated structures, which are introduced with high stereo and regioselectivity, as well as processes for their obtention. These compounds are useful for the synthesis of abroad range of bioactive molecules, such as condoritols and aminoinositols and their analogues.

Abstract: The present invention relates to substituted quinazoline compounds, methods for their preparation, as well as their use as intermediates for the preparation of active biomolecules.

Abstract: New spirolactams of formula (I) having a cycloexadienone moiety which are highly stable due to pi interactions between the W group and the dienone moiety. They are useful as UV absorbers and as intermediates for the synthesis of active biomolecules.

Abstract: The present invention refers to highly functionalised spiro-fused azetidinones of formula I: having a cyclohexane moiety with the desired number of protected or unprotected hydroxyl groups which are introduced with high stereo and regioselectivity, as well as processes for their synthesis.

Abstract: The present invention is directed to a compound of formula I: wherein R1 and R2 are independently selected from H, halogen, protected or unprotected hydroxy, alkylsilyloxy, substituted or unsubstituted alkyl or cycloalkyl, substituted or unsubstituted alkoxy or aryloxy, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclyl, nitro, amino, mercapto or alkylthio; R3 and R4 are independently selected from H, substituted alkyl, substituted or unsubstituted alkoxy or aryloxy, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclyl; Z is —(CRaRb)n— wherein n is a number selected from 1, 2, 3 and Ra and Rb are each independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy, substituted or unsubstituted amino or halogen; Y is

Abstract: The invention provides highly functionalised spiro-fused azetidinones having a cyclohexane moiety with the desired number of protected or unprotected hydroxyl groups or carbonated structures, which are introduced with high stereo and regioselectivity, as well as processes for their obtention.