摘要:
A process for the preparation of 10-deacetyl-7,10-bis- trichloroacetylbaccatine III with HPLC purity higher than 99% and free from 2-debenzoyl-2-pentenoylbaccatine III by purification of 10-deacetyl-7,10-bis- trichloroacetylbaccatineIII followed by alkaline hydrolysis of the protecting groups in position 7 and 10.
摘要:
The present invention provides novel crystalline forms of 4-[3-Chloro-4-(N'-cyclopropylureido)phenoxy]-7-methoxyquinoline-6-carboxamide methanesulfonate, as well as methods for their preparation.
摘要:
The invention discloses 2-((2 R ,4 R )-4-(4-(benzyloxy)- 4-methylpent-2-yn-1-yl)-2-(tert-butyl) -5-oxo-1,3-dioxolan-4-yl)acetic acid of formula (XIX), a process for its preparation and processes for its conversion into enantiomerically pure ( R )-2-(2-methoxy-2-oxoethyl)-6,6-dimethyltetrahydro-2 H- pyran-2-carboxylic acid of formula (I), a molecule useful for the synthesis of Homoharringtonine.
摘要:
The present invention refers to an amorphous form of a thiocolchicine derivative, IDN 5404, to a process for producing it and to pharmaceutical compositions thereof. The amorphous form is characterised by the XRPD pattern, DSC profile and/or TG/DTA profile.