STARTING MATERIAL FOR BULK DRUG OR ADDITIVES FOR DRUG, AND BULK DRUG OR DRUG USING SAME

• Main Authors: NAKAI, KENICHIRO, MICHIGAMI, KYOSUKE, MOTOFUJI, SHIHEI, MATSUMOTO, ITSUKA
• Format: Patent
• Language: English; French
• Published: 02.05.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; HUMAN NECESSITIES; HYGIENE; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; THEIR PREPARATION OR CHEMICAL WORKING-UP

In a preferred embodiment, there is provided a raw material for bulk drugs or a pharmaceutical additive, comprising a polyether composition (A) represented by formula (1), wherein the composition (A) has a unimodal molecular weight distribution and a ratio (Mw/Mn) of 1.20 or less, and contains a com...