摘要:
The present invention provides an industrially advantageous process for producing a steroid C17,20 lyase inhibitor represented by the general formula (I); and a Reformatsky reagent in a stable form suitable for the process.In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH2COOC2H5 or a crystal of the compound which is represented by the formula (BrZnCH2COOC2H5.THF)2.
摘要翻译:本发明提供了用于生产由通式(I)表示的类固醇C17,20裂解酶抑制剂的工业上有利的方法; 和一种适用于该方法的稳定形式的Reformatsky试剂。 在本发明中,通式(I)表示的化合物是通过在金属氢化物络合物的存在下,通过在Reformatsky反应中还原由特定的羰基化合物得到的特定的β-羟基酯化合物衍生物或其盐 和金属卤化物,然后使其进行闭环反应。 在上述Reformatsky反应中,使用由通式BrZnCH 2 COOC 2 H 5表示的化合物或由式(BrZnCH2COOC2H5.THF)2表示的化合物的晶体的稳定溶液是有用的。
摘要:
The present invention provides an industrially advantageous process for producing a steroid C17,20 lyase inhibitor represented by the general formula (I); and a Reformatsky reagent in a stable form suitable for the process.In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH2COOC2H5 or a crystal of the compound which is represented by the formula (BrZnCH2COOC2H5.THF)2.
摘要翻译:本发明提供了用于生产由通式(I)表示的类固醇C17,20裂解酶抑制剂的工业上有利的方法; 和一种适用于该方法的稳定形式的Reformatsky试剂。 在本发明中,通式(I)表示的化合物是通过在金属氢化物络合物的存在下,通过在Reformatsky反应中还原由特定的羰基化合物得到的特定的β-羟基酯化合物衍生物或其盐 和金属卤化物,然后使其进行闭环反应。 在上述Reformatsky反应中,使用由通式BrZnCH 2 COOC 2 H 5表示的化合物或由式(BrZnCH2COOC2H5.THF)2表示的化合物的晶体的稳定溶液是有用的。
摘要:
The present invention provides a novel ligand represented by the following formula and a novel transition metal complex having the ligand, which shows superior enantioselectivity and catalytic efficiency, particularly high catalyst activity, in various asymmetric synthesis reactions.A transition metal complex having, as a ligand, a compound represented by the formula wherein R4 is a hydrogen atom or a C1-6 alkyl group optionally having substituent(s), and R5 and R6 are each a C1-6 alkyl group optionally having substituent(s), or the formula is a group represented by the formula wherein ring B is a 3- to 8-membered ring optionally having substituent(s).
摘要:
The present invention provides an industrially advantageous process for producing a steroid C17,20 lyase inhibitor represented by the general formula (I):
摘要:
The present invention provides an industrially advantageous process for producing a steroid C17,20 lyase inhibitor represented by the general formula (I); and a Reformatsky reagent in a stable form suitable for the process. In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH2COOC2H5 or a crystal of the compound which is represented by the formula (BrZnCH2COOC2H5.THF)2.
摘要翻译:本发明提供了用于生产由通式(I)表示的类固醇C17,20裂解酶抑制剂的工业上有利的方法; 和一种适用于该方法的稳定形式的Reformatsky试剂。 在本发明中,通式(I)表示的化合物是通过在金属氢化物络合物的存在下,通过在Reformatsky反应中还原由特定的羰基化合物得到的特定的β-羟基酯化合物衍生物或其盐 和金属卤化物,然后使其进行闭环反应。 在上述Reformatsky反应中,使用由通式BrZnCH 2 COOC 2 H 5表示的化合物或由式(BrZnCH2COOC2H5.THF)2表示的化合物的晶体的稳定溶液是有用的。
摘要:
The present invention provides an industrially advantageous process for producing a steroid C17,20 lyase inhibitor represented by the general formula (I): and a Reformatsky reagent in a stable form suitable for the process. In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH2COOC2H5 or a crystal of the compound which is represented by the formula (BrZnCH2COOC2H5.THF)2.
摘要翻译:本发明提供了用于生产由通式(I)表示的类固醇C17,20裂解酶抑制剂的工业上有利的方法:和适于该方法的稳定形式的Reformatsky试剂。 在本发明中,通式(I)表示的化合物是通过在金属氢化物络合物的存在下,通过在Reformatsky反应中还原由特定的羰基化合物得到的特定的β-羟基酯化合物衍生物或其盐, 金属卤化物,然后使其进行闭环反应。 在上述Reformatsky反应中,使用由通式BrZnCH 2 COOC 2 H 5表示的化合物或由式(BrZnCH2COOC2H5.THF)2表示的化合物的晶体的稳定溶液是有用的。
摘要:
The present invention provides a novel ligand represented by the following formula and a novel transition metal complex having the ligand, which shows superior enantioselectivity and catalytic efficiency, particularly high catalyst activity, in various asymmetric synthesis reactions.A transition metal complex having, as a ligand, a compound represented by the formula wherein R4 is a hydrogen atom or a C1-6 alkyl group optionally having substituent(s), and R5 and R6 are each a C1-6 alkyl group optionally having substituent(s), or the formula is a group represented by the formula wherein ring B is a 3- to 8-membered ring optionally having substituent(s).
摘要:
A method for producing a compound of the formula: wherein R is an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group and ring A is an imidazole ring which is optionally substituted further, or a salt thereof, which method comprises reacting a compound of the formula: wherein ring A is as defined above, or a salt thereof, and a compound of the formula: R—M1 (II) wherein M1 is an alkali metal atom or a group of the formula: —Mg—Y1 where Y1 is a halogen atom, and R is as defined above, or a salt thereof, and bringing the resulting product into contact with an acid.