摘要:
A method for the preparation of a compound of formula (1) or a pharmaceutically acceptable salt or solvate thereof; from a compound of the formula: (IV); wherein L represents a leaving group.
摘要:
A method for the preparation of a compound of formula (1) or a pharmaceutically acceptable salt or solvate thereof; from a compound of the formula: (IV); wherein L represents a leaving group.
摘要:
A method for the preparation of a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof; from a compound of the formula: (IV); wherein L represents a leaving group.
摘要:
A method for the preparation of a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof; from a compound of the formula: (IV); wherein L represents a leaving group.
摘要:
The invention relates to compounds of formula (X), and salts thereof, and their use as intermediates in improved manufacturing processes for the synthesis of pharmaceutical compound (I): X is ═O, ═N—OH or ═N—OC(O)Me; Y is hydrogen, PhS- or p-chlorophenylsulfanyl; Z is hydrogen or —CH2COOR1 wherein R1 is selected from hydrogen, optionally substituted hydrocarbyl and optionally substituted heterocyclyl.
摘要:
The invention relates to compounds of formula (X), and salts thereof, and their use as intermediates in improved manufacturing processes for the synthesis of pharmaceutical compound (I): X is ═O, ═N—OH or ═N—OC(O)Me; Y is hydrogen, PhS- or p-chlorophenylsulfanyl; Z is hydrogen or —CH2COOR1 wherein R1 is selected from hydrogen, optionally substituted hydrocarbyl and optionally substituted heterocyclyl.
摘要:
A process for the preparation of a compound of the formula: or an acid addition or base salt thereof, wherein R is phenyl optionally substituted by 1 to 3 substituents each independently selected from halo and trifluoromethyl; R1 is C1-C6 alkyl; and “Het” is pyrimidinyl optionally substituted by 1 to 3 substituents each independently selected from C1-C4 alkyl, C1-C4 alkoxy, halo, oxo, benzyl and benzyloxy, comprising reacting a compound of the formula: with a compound of the formula wherein X is chloro, bromo or iodo, the reaction taking place in the presence of zinc; at least one of iodine or a Lewis acid; and an aprotic organic solvent: optionally further reacting the resulting compound with an acid or base to form the corresponding acid addition or base salt thereof.
摘要:
A process for the manufacture of a compound of formula (V), useful for making rosuvastatin, by a stereoselective aldol reaction is described. Novel intermediates and processes to make them are also described.
摘要:
Novel Process and Intermediates. A process for preparing a compound of formula (I) where R4 and R5 are as defined in the specification; and R6 is hydrogen or a protecting group, which process comprises cyclisation of a compound of formula (II) where R4 and R5 and R6 are as defined in relation to formula (I), and R7 is nitrogen protecting group, and removing the group R7, and thereafter if desired, removing any protecting group R6. Novel intermediates and the use of these in the formation of pharmaceutical compounds is also described and claimed.
摘要:
This invention relates to novel compositions comprising a N-halodialkylamine as defined in the specification and an inorganic oxide. The compositions are useful as halogenating agents for phenolic compounds. The compositions have the advantage that they are milder halogenating agents than halogens or hydrogen halides.