专利号:WO-0058264-A1 优先权日:1999-03-26 标 题:Method for the synthesis of non-symmetrical dtpa compounds 发明人:ACHILEFU SAMUEL I; SRINIVASAN ANANTHACHARI 权利人:MALLINCKRODT INC; ACHILEFU SAMUEL I; SRINIVASAN ANANTHACHARI 摘要:The synthesis of compounds of formula (XIV) wherein each R4 is an alkyl group having 1 to 15 carbon atoms, and R6 is a linking moiety having 1 to 10 carbon atoms, is disclosed. These compounds are useful intermediates in the synthesis of compounds of formula (X). These compounds are useful in the preparation of nuclear pharmaceuticals such as those used for tumor imaging or tumor therapy.
专利号:WO-0058266-A1 优先权日:1999-03-26 标题:Divergent method for the synthesis of diethylene triaminepenta aceticacid esters 发明人:ACHILEFU SAMUEL I; SRINIVASAN ANANTHACHARI 权利人:MALLINCKRODT INC; ACHILEFU SAMUEL I; SRINIVASAN ANANTHACHARI 摘要:The synthesis of compounds of formula (X) is disclosed. These compounds are useful in the preparation of nuclear pharmaceuticals such as those used for tumor imaging or tumor therapy.
专利号:US-2024309142-A1 优先权日:2023-03-17 标题 :Capped block copolymers, their synthesis, manufacture, and methods of use 发明人:MAN VICTOR FUK-PONG; LI XIAOJIN HARRY; CHEN YIQING; PU GANG; HUNT JR CLINTON 权利人:ECOLAB USA INC 摘要:This disclosure relates to capped block copolymers, preferably reverse block copolymers capped with a hydrophobic group. Preferred hydrophobic groups include benzyl groups and silyl groups. In a preferred embodiment, the reverse block copolymer has at least two arms, wherein each arm is capped with a hydrophobic group. The disclosure also provides for the synthesis of the capped block copolymers as well as methods of using the capped block copolymers for defoaming and antifoaming applications.