FIELD: organic chemistry and technology. SUBSTANCE: invention relates to a method of preparing a crystalline monohydrate form of compound of the formula (I): which involves exposition of a crystalline dihydrate form of compound of the formula (I) at temperature between about 50 C to about 65 C and at relative humidity between about 60% to about 100%. EFFECT: simplified method of isolation of an antibiotic loracarbef showing strong effect. 3 cl, 4 ex
Authors
Dates
1998-12-27—Published
1994-06-03—Filed