摘要:
A process for the preparation of 14β-hydroxy-baccatin III-1,14-carbonate useful for the preparation of novel taxane derivatives with antitumor activity.
摘要:
The present invention relates to compositions comprising benzophenanthridine alkaloids, benzofuran compounds and catechin polyphenols, which are useful in the treatment and prevention of infections of the oral cavity.
摘要:
5-substituted camptothecin derivatives having antitumor activity, the processes for the preparation thereof, the use thereof as antitumor drugs and pharmaceutical compositions containing them.
摘要:
The invention discloses novel secotaxane derivatives of general formula 1, having cytotoxic activity, which can be administered through the injective or oral route, for the therapy of tumors.
摘要:
Disclosed is a compound having the formula a) or b); a: R = CH 3 ; b: R = CH 2 CH 3 , and its use in the prevention and/or treatment of Alzheimer's disease.
摘要:
This invention relates to a "one pot" process for the preparation of isoserine derivatives in high diastereoselective way. The process according to the invention includes the steps of reacting a protected glycidic acid with imines to yield isoserines protected both at the -OH and at the -COOH groups, deprotection of the obtained intermediates to isoserines or isoserine 1-4C- alkyl esters. Pure threo derivatives as the main isomer are obtained.
摘要:
The invention relates to a process for the preparation of ferutinine (Ia) from Ferula spp extracts comprising basic hydrolysis of the extracts and treatment with p-pivaloyloxybenzoic acid. The invention relates also to the use of the extracts and ferutinine in the cosmetic and dermatological field.
摘要:
A general process for the functionalization at the 14- position of 13-ketobaccatin derivatives of formula I to give derivatives of formula II wherein the substituents are as defined in the disclosure. The conversion of compounds of formula II in compounds of formula III, wherein the substituents are as defined in the disclosure, is also described.
摘要:
The present invention relates to an efficient procedure for the synthesis of deserpidine (Ia), starting from reserpic acid lactone (II) via the intermediate 11-O-demethyl reserpic acid lactone (III).
摘要:
Floroglucino salts, in particular salts of tetrahydro-and octahydro- hyperforin or adhyperforin derivates and of colupon with acetylcholinesterase-inhibiting alkaloids and methods for the preparation thereof. Said salts are useful for the treatment of depression and Alzheimer’s disease can be administered as conventional pharmaceutical formulations or as controlled-release transdermal preparations.