Claims
- 1. A method for the production of an isoquinoline derivative represented by the general formula (101): ##STR77## wherein R.sub.101 stands for a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a cycloalkylalkyl group having 4 to 7 carbon atoms, a cycloalkenylalkyl group having 6 to 8 carbon atoms, an aralkyl group having 7 to 14 carbon atoms, a transalkenyl group having 4 to 5 carbon atoms, an allyl group, furanyl-2-alkyl, thienyl-2-alkyl, R.sub.107 OCO (wherein R.sub.107 stands for 2,2,2-trichloroethyl or benzyl), or R.sub.108 CO (wherein R.sub.108 stands for an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, a cycloalkenyl group having 5 to 7 carbon atoms, phenyl, an aralkyl group having 7 to 13 carbon atoms, a trans-alkenyl group having 4 to 5 carbon atoms, vinyl, 2-furanyl or 2-ethienyl), R.sub.102, R.sub.103, R.sub.104 and R.sub.105 independently stand for a hydrogen atom, a hydroxy group, an alkanoyloxy group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, provided that R.sub.102 and R.sub.103 jointly or R.sub.104 and R.sub.105 jointly may form an oxo group or R.sub.103 and R.sub.104 jointly may form a 1,3-dioxolan ring, R.sub.106 a hydrogen atom, a hydroxy group, an alkoxy group having 1 to 5 carbon atoms, or an alkanoyloxy group having 1 to 5 carbon atoms, provided that said general formula (101) embraces a (+) form, a (-) form, and a (.+-.) form or a pharmacologically acceptable salt thereof, characterized by proceeding through a step of oxidizing with an oxidizing agent and followed by reducing, the carbamate form of an enamine represented by the general formula (103): ##STR78## wherein R.sub.102, R.sub.103, R.sub.104, R.sub.105, R.sub.106, and R.sub.107 have the same meanings as defined above, thereby forming an oxide represented by the general formula (101a): ##STR79## wherein R.sub.102, R.sub.103, R.sub.104, R.sub.105, R.sub.106, and R.sub.107 have the same meanings as defined above, provided that said general formula (101a) embraces a (+) form, a (-) form, and a (.+-.) form.
- 2. A method for producing an isoquinoline derivative represented by the general formula (101a): ##STR80## wherein R.sub.102, R.sub.103, R.sub.104, and R.sub.105 independently stand for a hydrogen atom, hydroxy, alkanoyloxy having 1 to 5 carbon atoms, or alkoxy having 1 to 5 carbon atoms, provided that R.sub.102 and R.sub.103 jointly or R.sub.103 and R.sub.104 jointly may form an oxo group or R.sub.103 and R.sub.104 may jointly form a 1,3-dioxolane ring, R.sub.106 stands for a hydrogen atom, hydroxy, alkoxy having 1 to 5 carbon atoms, or alkanoyloxy having 1 to 5 carbon atoms, or a pharmacologically acceptable salt thereof and R.sub.107 stands for 2,2,2-trichloroethyl or benzyl, provided that formula (101a) embraces a (+) form, a (-) form and a .+-. form comprising:
- epoxidizing a carbonate represented by the formula (103): ##STR81## wherein R.sub.102, R.sub.103, R.sub.104, R.sub.105, R.sub.106 and R.sub.107 have the same meanings as defined above;
- to form an epoxy compound represented by the formula (104): ##STR82## wherein R.sub.102, R.sub.103, R.sub.104, R.sub.105, R.sub.106 and R.sub.107 have the same meanings as defined above; and
- reducing the epoxy compound to obtain an isoquinoline represented by the formula (101)a.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2-148179 |
Jun 1990 |
JPX |
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2-335458 |
Nov 1990 |
JPX |
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Parent Case Info
This application is a Divisional of application Ser. No. 07/828,889, filed as PCT/JP91/00759 Jun. 5, 1991 now U.S. Pat. No. 5,244,904.
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Brossi et al. |
Jan 1976 |
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4310667 |
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Foreign Referenced Citations (1)
Number |
Date |
Country |
49-85075 |
Jul 1973 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Morrison & Boyd p. 180 & p. 757, 3rd Ed. 1976. |
"Reactions of Alcohols, Phenols, and Ethers," Norman L. Allinger et al, Organic Chemistry, Second Edition, pp. 438-440. |
Continuations (1)
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Number |
Date |
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Parent |
828889 |
Jan 1992 |
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