摘要:
Derivatives of -.alpha.,D-glucofuranose .alpha.,D-allanfuranose and intermediates for preparing these derivatives are described. These derivatives are useful for treating animals and mammals with inflammatory and/or autoimmune disorders such as psoriasis, atopic dermatitus, rheumatoid arthritis, osterarthritis, scleroderma and systemic lupus erythematosus.
摘要:
Derivatives of 1,2-O-isopropylidene-.alpha.,D-glucofuranose and intermediates for preparing these derivatives are described. These derivatives are useful for treating animals and mammals with inflammatory and/or autoimmune disorders such as autoimmune deficiency syndrome, psoriasis, atopic dermatitus, rheumatoid arthritis, osteoarthritis, scleroderma and systemic lupus erythematosus.
摘要:
Derivatives of simple monosaccharides which exhibit anti-proliferative and/or anti-inflammatory activity and are useful for treating mammals having inflammatory disorders and/or autoimmune disorders. This invention also encompasses pharmaceutical compositions containing these compounds and methods of treating inflammatory and/or autoimmune disorders.
摘要:
A process for the preparation of N-demethyl-4"-deoxy-erythromycins A and B, having the formula: ##STR1## wherein R.sup.a is H or OH, by stepwise addition of iodine and base to the N-dimethyl-4"-deoxyerythromycin, preferably, accompanied by sparging with an inert gas.
摘要:
A process for the preparation of 4"-deoxyerythromycins, having the formula: ##STR1## wherein R is H or OH, and R.sup.1 is H or loweralkyl by treatment of the 2'-O-acetyl-4"-imidazolylthionocarbonyl-erythromycin starting material with the radical initiator 4,4'-azobis-(4-cyanovaleric acid), H.sub.3 PO.sub.2 and an organic base in a water-miscible solvent and optionally eliminating the 2'-O-acetyl group. In a preferred embodiment, the water-miscible solvent is an alcohol and the deoxygenation and deacetylation is carried out in one step.
摘要翻译:一种制备4'-脱氧红霉素的方法,具有下式:其中R为H或OH,R1为H或低级烷基,通过处理2'-O-乙酰基-4“ - 咪唑硫代羰基 - 红霉素 起始材料与自由基引发剂4,4'-偶氮双(4-氰基戊酸),H 3 PO 2和有机碱在水混溶性溶剂中并任选除去2'-O-乙酰基。 在优选的实施方案中,水混溶性溶剂是醇,脱氧和脱乙酰化在一个步骤中进行。
摘要:
The claimed invention relates to a novel process of preparing N-demethyl-N-alkyl-4"-deoxy erythromycin A and B. The process comprises protecting the 2'-hydroxy or the 2'- and 11-hydroxy of a N-demethyl-4"-deoxy erythromycin derivative having the formula: ##STR1## where R.sub.b is H or OH, with a silyl protecting group and alkylating the N-position of the desosamine sugar.
摘要:
A process for the preparation of 4"-deoxyerythromycins, having the formula: ##STR1## wherein R is H or OH, R.sup.1 is H or loweralkyl, and R.sup.2 is H or CH.sub.3 by treatment of the starting material, 2'-O-acetyl-4"-imidazolylthiocarbamoyl-erythromycin, with a hypophosphite reagent, in a water-miscible protic solvent optionally comprising a phase transfer agent. In a preferred embodiment, the water-miscible solvent is an alcohol and the starting material is reacted with sodium hypophosphite, ACVA and tetra-n-butylammonium hydroxide.
摘要:
The present invention provides a process for the preparation of a compound of formula ##STR1## wherein R is a straight or branched alkyl group of from one to twelve carbon atoms; M represents hydrogen or a pharmaceutically acceptable cation; and A is selected from optionally substituted carbocyclic phenyl.