摘要:
Novel synthetic steps and intermediates leading to guanidines such as the anti-diabetic compound linogliride. Included is a hydrogen peroxide oxidation of a thiourea (II) to a sulfonic acid (I) which may then be reacted with morpholine to form the carboximidamide (III): ##STR1##
摘要:
An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H.sub.2 O.sub.2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can then be reacted with an amine followed by optional transamination steps.
摘要翻译:喹啉的有效合成,例如 的式(III)化合物,通过氧化硫脲,例如 的下式(II):用H 2 O 2和钼催化剂制备氨基亚氨基甲烷磺酸,然后可与胺反应,然后进行任选的转氨步骤。
摘要:
An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H.sub.2 O.sub.2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can then be reacted with an amine followed by optional transamination steps.
摘要翻译:喹啉的有效合成,例如 的式(III)化合物,通过氧化硫脲,例如 (II):使用H 2 O 2和钼催化剂制备氨基亚氨基甲烷磺酸,然后可以与胺反应,随后任选的转氨步骤。
摘要:
Novel synthetic steps and intermediates leading to guanidines such as the anti-diabetic compound linogliride. Included is a hydrogen peroxide oxidation of a thiourea (II) to a sulfonic acid (I) which may then be reacted with morpholine to form the carboximidamide (III): ##STR1##
摘要:
An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H.sub.2 O.sub.2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can then be reacted with an amine followed by optional transamination steps.
摘要翻译:喹啉的有效合成,例如 的式(III)化合物,通过氧化硫脲,例如 的下式(II):用H 2 O 2和钼催化剂制备氨基亚氨基甲烷磺酸,然后可与胺反应,然后进行任选的转氨步骤。
摘要:
The processes provide for the preparation of a [2S-(2.alpha., 3a.beta., 7a.beta.)]-octahydro-lH-indole-2-carboxylic ester from an ester precursor by a stereospecific hydrogenation at a pressure below about 400 psi. In addition, the processes provide for the preparation of [2S-(2.alpha.m 3a.beta., 7a.beta.)]-octahydro-lH-indole-2-carboxylic acid or a ester thereof by the hydrogenation of a (2S)-2-carboxyindoline acid precursor.